{"title":"Imaging Filters","description":"","products":[{"product_id":"zwo-ir-cut-filter-1-25","title":"ZWO 红外截止滤光片 1.25","description":"\u003ch3\u003e ZWO 1.25 英寸 IR UV CUT 滤镜适用于带有 AR 保护窗的彩色相机。\u003c\/h3\u003e\n\n\u003cp\u003e ZWO 红外截止滤光片 1.25 可阻止红外光到达 CCD 或 CMOS 相机的传感器或昂贵的 H-alpha 滤光片。成像时，添加这个简单且便宜的配件将产生更清晰的图像，而进行太阳工作时，红外截止滤光片将保护 H-alpha 滤光片免受红外辐射的破坏性影响。\u003c\/p\u003e\n\n \u003cp\u003e红外线或红外光是人眼无法看见的，因此，尽管大多数望远镜的设计并不是为了聚焦红外光，但当您目视使用望远镜时，红外光并不重要。但是，当您将相机添加到组合中时，情况就完全不同了！与人眼不同，硅传感器对光谱中红外部分的光非常敏感，这是一个问题，因为红外图像非常模糊。这意味着，由于增加了红外层，清晰的可见光图像质量会下降。通过阻挡红外线可以轻松解决这个问题，而 ZWO IR Cu 滤镜 1.25 就可以做到这一点。\u003c\/p\u003e\n\n\u003cp\u003e ZWO IR Cut 滤镜安装在 1.25 英寸的盒子中，并具有内部螺纹，因此您可以将滤镜堆叠在一起。该滤镜配有保护性塑料盒。 \u003cimg class=\"size-full wp-image-37361 alignleft\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/ZWOIR-Window-graph1.jpg\" alt=\"\" width=\"464\" height=\"263\"\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":42045235429445,"sku":"ZWO-IRCUT125","price":39.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/zwo-ir-cut-filter-125-960704.jpg?v=1731541428"},{"product_id":"astronomik-l-rgb-filterset-1-25in-e285-type-2c","title":"Astronomik L-RGB 滤镜组 1.25 英寸 (E28,5) 2c 型","description":"\u003cp\u003eL-RGB 滤镜组 1.25 英寸 2c 型滤镜的传输特性针对 CCD 天文摄影进行了优化。该滤镜组可拍摄所有类型物体的正确颜色图像。其他品牌做出奇怪的妥协，而我们尽可能做到最好的色彩再现。恒星以及仅以光谱线发射的物体都以真实颜色再现。您可以获得具有完美色彩的 CCD 图像，就好像物体足够明亮，可以用明视觉看到一样。此功能是 Astronomik 滤镜与其他制造商的滤镜之间的主要区别。\u003c\/p\u003e\n\n\u003cp\u003e以下方面对于我们的过滤器的设计最为重要：\u003c\/p\u003e\n\n\u003cp\u003e - 为用户提供简单的图像处理\u003c\/p\u003e\n\n\u003cp\u003e- 短曝光时间下透射率最高（接近 100%）\u003c\/p\u003e\n\n\u003cp\u003e - 调整各个滤镜的传输以实现最佳色彩再现\u003c\/p\u003e\n\n\u003cp\u003e- 使用行业标准\u003c\/p\u003e\n\n \u003cp\u003eAstronomik 不会在拍照的这一步就停止思考。更重要的是，应该为天文摄影师提供一个简单而优雅的编辑过程的工具。为了保持色彩，我们计算了 sRGB 色彩空间的滤镜集，该色彩空间是大多数显示器、打印机和成像软件制造商使用的行业标准。作为用户，您无需花时间学习比色法和色彩空间。我们已经为您解决了天文摄影的特殊问题。\u003c\/p\u003e\n\n\u003cp\u003e由于载体基板的高精度加工，我们的滤光片具有共焦性，楔形误差低于所有常见范围。为了不成为高质量光学系统的瓶颈，Astronomik 滤光片当然具有衍射限制。焦距问题以及每幅彩色图像的精确位置根本不是问题！\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e主要用途\u003c\/strong\u003e\u003c\/p\u003e\n\n \u003cp\u003eL-RGB 滤镜组将光谱分为红、绿、蓝和亮度。因此，可以使用纯黑白 CCD 传感器实现色彩分离。根据 DIN 5032，分离对应于人眼的色彩敏感度。通过使用 sRGB 颜色空间，可以在整个图像处理和输出过程中保持图像的颜色。使用 Astronomik L-RGB 滤镜组和相机，您可以创建在 sRGB 颜色空间中进行图像处理的理想原始材料。\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e库存编号：8h0039\u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"Default Title","offer_id":42045259219013,"sku":"8h0039","price":450.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik-l-rgb-filterset-125in-e285-type-2c-484889.jpg?v=1731540423"},{"product_id":"atik-lrgb-36mm-filter-set","title":"Atik LRGB 36mm 滤镜套装","description":"\u003cp\u003eATIK LRGB 36mm 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\u0026lt;0.5%\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e绿色的\u003c\/td\u003e\n\n\u003ctd\u003e500-550纳米\u003c\/td\u003e\n\n\u003ctd\u003e平均 \u0026gt;95%，最低 \u0026gt;90%\u003c\/td\u003e\n\n\u003ctd\u003e最大值 \u0026lt;1% 平均值 \u0026lt;0.5%\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e蓝色的\u003c\/td\u003e\n\n\u003ctd\u003e410-500纳米\u003c\/td\u003e\n\n\u003ctd\u003e平均 \u0026gt;95%，最低 \u0026gt;90%\u003c\/td\u003e\n\n\u003ctd\u003e最大值 \u0026lt;1% 平均值 \u0026lt;0.5% \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n \u003cp\u003e库存编号：ATK0163\u003c\/p\u003e","brand":"Atik","offers":[{"title":"Default Title","offer_id":42045266985029,"sku":"ATK0163","price":549.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/atik-lrgb-36mm-filter-set-252549.jpg?v=1731540426"},{"product_id":"antlia-sho-3nm-pro-filters-1-25-inch","title":"Antlia SHO 3nm Pro 滤镜 1.25 英寸","description":"\u003cp\u003e\u003cspan class=\"public-DraftStyleDefault-block public-DraftStyleDefault-ltr\" data-offset-key=\"ee01q-0-0\"\u003e\u003cspan data-offset-key=\"ee01q-0-0\"\u003eAntlia 3nm Pro 超窄带 1.25 英寸滤光片组包括以下物品：\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e \u003cspan data-offset-key=\"ee01q-0-0\"\u003eAntlia 1.25 英寸 H-Alpha 3nm 滤镜\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan data-offset-key=\"ee01q-0-0\"\u003eAntlia 1.25 英寸 OIII 3nm 滤镜\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan data-offset-key=\"ee01q-0-0\"\u003eAntlia 1.25 英寸 SII 3nm 滤镜\u003c\/span\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003eAntlia SHO Pro 窄带滤光片将 FWHM（半峰全宽）优化至 3nm 带通。随着带宽变窄，3nm Pro 窄带滤光片通过降低不需要的背景信号来增强发射目标的对比度。Antlia SHO 3nm Pro 滤光片旨在在 671.6nm 线上提供 88% 的透射率，为您提供最大信号和清晰的星云结构。\u003c\/p\u003e\n\n \u003cp\u003e传统的较宽窄带滤光片由于强烈的（中心波长 (CWL) 偏移）会导致严重的传输损失。我们保证在中心带宽 1nm 范围内 T\u0026gt;88%，这意味着 3nm Pro 窄带滤光片可以保证高透射率，适用于长焦比和快速光学系统。蓝移数据显示，Antlia 3nm Pro 滤光片几乎可以与所有速度高达 f\/3 的系统一起使用，发射信号损失最小，并满足 Hyperstar 和 RASA 等快速光学器件的要求。\u003c\/p\u003e\n\n\u003cp\u003e带外阻断规格为 OD5（0.001%），可提供出色的 SNR（信噪比）和有效截止率，以最大限度地减少来自其他波长的干扰。改进的锐利截止天文摄影 3nm Pro 滤镜旨在最大限度地减少明亮恒星周围的光晕。\u003c\/p\u003e\n\n\u003ch6\u003e用途与性能：\u003c\/h6\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e高透射率和最小带宽可最大程度地提高对比度\u003c\/li\u003e\n\n\u003cli\u003e陡峭的光谱轮廓最大程度地减少了明亮恒星周围的光晕\u003c\/li\u003e\n\n \u003cli\u003e单一基板可消除内部反射\u003c\/li\u003e\n\n\u003cli\u003e窄带物体：发射星云、行星、沃尔夫-拉叶星云和超新星遗迹\u003c\/li\u003e\n\n\u003cli\u003e在光污染区域和黑暗场所使用\u003c\/li\u003e\n\n\u003cli\u003e月亮升起时延长成像时间\u003c\/li\u003e\n\n\u003cli\u003eAntlia 窄带 Pro 滤波器可用于 F\/3 系统，信号损失轻微\u003c\/li\u003e\n\n\u003cli\u003e所有 Antlia 窄带滤光片的边缘均经过涂黑处理，以消除杂散光的内部反射\u003c\/li\u003e\n\n\u003cli\u003e卓越的光学可靠性减少了后期图像处理\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003c\/p\u003e","brand":"QHY","offers":[{"title":"1.25 inch Mounted","offer_id":42506984095813,"sku":"040034","price":1310.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch Mounted","offer_id":42506984194117,"sku":"040037","price":2000.0,"currency_code":"AUD","in_stock":true},{"title":"31mm Unmounted","offer_id":42506984128581,"sku":"040035","price":1410.0,"currency_code":"AUD","in_stock":true},{"title":"36mm Unmounted","offer_id":42506984161349,"sku":"040036","price":1570.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/antlia-sho-3nm-pro-filters-125-inch-808068.jpg?v=1731540419"},{"product_id":"antlia-lrgb-v-pro-filters-1-25-inch","title":"Antlia LRGB V Pro 滤镜 1.25 英寸","description":"\u003cp\u003eAntlia LRGB-V Pro 系列滤镜专为使用 CCD 和 CMOS 传感器的单色相机而设计。适用的传感器包括 KAF\/KAI 传感器、Sony IMX 传感器、GSENSE 和其他传感器制造商。LRGB-V Pro 套件旨在大致均衡来自红色敏感 CCD 探测器通量的 RGB 响应。结果是，您可以实现 1:1:1 均衡的 RGB 曝光，同时具有简化的后期处理和缩短的成像时间的优势。新的 LRGB-V Pro 系列滤镜在绿色和红色通道之间具有精心设计的光谱间隙，以最大限度地减少光污染的影响并提供有用频率的高透射率。滤镜的设计最大限度地捕捉了较暗星系和星云发射的细节。LRGB-V Pro 系列滤镜保证 B 和 G 滤镜中 OIII 波段的高透射率（蓝色和绿色的 OIII 信号 \u0026gt;95%）。B 通道的带宽变窄是为了改善由于 B 通道过度曝光而导致的恒星周围的蓝色通道溢出（光晕）。 Antlia LRGB-V Pro 系列滤光片通过 G 和 R 滤光片之间的宽间隙设计阻挡了 589nm 左右的发射线，从而抑制了高压钠灯和汞路灯的光污染，并实现了更自然的色彩平衡。基板厚度的均匀性使所有 Antlia 滤光片都具有良好的共焦性能。\u003c\/p\u003e\n\n \u003cp\u003eLRGB-V Pro系列套装的亮点\u003c\/p\u003e\n\n\u003cp\u003e1. 优质镀膜技术和精细抛光的基片 我们优化了质量选择流程，以确保高度均匀的玻璃基片。我们采用先进的光学镀膜技术和双面精密抛光，使所有滤镜均具有一致的共焦和光学性能。 2. 三个 RGB 通道中的每一个通道都实现了最大化的色彩平衡和对比度以及出色的 S\/N 性能 玻璃基板的两侧沉积了数十层涂层，使 LRGB-V Pro 滤镜能够实现高 SNR。防反射涂层和精心设计的光谱间隙可最大限度地减少不必要的光散射，并最大限度地提高每个滤镜通道的有用信号数据。\u003c\/p\u003e\n\n \u003cp\u003e3. 更紧密的星体轮廓和减少光晕 LRGB-V Pro系列套装的截止率经过高级设计，可最大限度地减少明亮星体周围的光晕并减少星体膨胀。我们精心设计的蓝色通道传输特性针对的是蓝色星体膨胀问题。\u003c\/p\u003e\n\n\u003cp\u003e用途与性能：\u003c\/p\u003e\n\n\u003cp\u003e 1. 专为单色CCD和CMOS相机设计\u003c\/p\u003e\n\n\u003cp\u003e2. 天体、星系、星团和星云的出色成像色彩\u003c\/p\u003e\n\n\u003cp\u003e3. AR增透膜设计，减少二次反射和星晕\u003c\/p\u003e\n\n\u003cp\u003e4. R-Filter 提供最大程度的 H-alpha 和 S II 发射传输\u003c\/p\u003e\n\n\u003cp\u003e5. B\/G 重叠使 OIII 线的能量加倍\u003c\/p\u003e\n\n\u003cp\u003e6. 平衡的 RGB 设计为大多数望远镜光学系统提供 1:1:1 的曝光时间\u003c\/p\u003e\n\n\u003cp\u003e7. 所有 Antlia LRGB-V Pro 滤镜的边缘均经过涂黑处理，以消除杂散光的内部反射\u003c\/p\u003e\n\n\u003cp\u003e8. 四个 LRGB 滤光片的基板厚度均保持严格的公差\u003c\/p\u003e\n\n\u003cp\u003e9. 不推荐用于太阳观测和成像\u003c\/p\u003e\n\n\u003cp\u003e10. 不建议目视观察\u003c\/p\u003e\n\n \u003cp\u003e重要提示：使用任何共焦滤光片时，用户在长时间成像过程中仍可能会遇到滤光片之间的焦点偏移。重要的是要记住，由于望远镜筒和玻璃光学元件之间的差异收缩，温度变化会改变光路的长度。建议摄影师每 1 到 2 小时手动或自动在软件中检查一次焦点。如果将望远镜从温暖的环境带到室外，则需要更频繁地检查焦点，直到设备稳定在接近环境温度为止。\u003c\/p\u003e\n\n\u003cp\u003e技术规格：\u003c\/p\u003e\n\n\u003cp\u003e基础基材：光学基材\u003c\/p\u003e\n\n\u003cp\u003e滤光片厚度：1.25'' 为 2mm+\/-0.05mm\u003c\/p\u003e\n\n\u003cp\u003e表面质量：S\/D（划痕\/凹陷）= 60\/40（参考 MIL-O-13830）\u003c\/p\u003e\n\n\u003cp\u003e透射波前：Lambda\/4 或更好。\u003c\/p\u003e\n\n\u003cp\u003e平行度：小于 30 角秒\u003c\/p\u003e\n\n\u003cp\u003e单面\/无胶基材\u003c\/p\u003e","brand":"QHY","offers":[{"title":"1.25 inch Mounted","offer_id":42506976264261,"sku":"040029","price":520.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch Mounted","offer_id":42506976297029,"sku":"40032","price":820.0,"currency_code":"AUD","in_stock":true},{"title":"31mm Unmounted","offer_id":42506976329797,"sku":"040030","price":570.0,"currency_code":"AUD","in_stock":true},{"title":"36mm Unmounted","offer_id":42506976362565,"sku":"040031","price":630.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/antlia-lrgb-v-pro-filters-125-inch-799874.jpg?v=1731540419"},{"product_id":"antlia-alp-t-dual-band-5nm-filter-2-inch-m48-mounted","title":"Antlia ALP-T 双波段 5nm 滤光片 - 2 英寸\/M48 已安装","description":"\u003cp\u003eALP-T 双波段 5nm 滤镜最适合 f 比低于 f\/3.6 的光学器件，强烈推荐使用标准 Antlia ALP-T 双波段滤镜。同时，如果您希望使用 f\/2.2 以上的任何光学器件获得最佳性能，高速版本是最佳选择。\u003c\/p\u003e\n\n \u003cp\u003eAntlia ALP-T 双波段 5nm 系列滤光片是一种双线通滤光片，主要用于单次拍摄彩色 (OSC) 相机，例如 DSLR 和天文 OSC 相机。它还可以用作单色相机的窄带滤光片，以节省成像时间。我们的 ALP-T 超双波段滤光片上的高级多层镀膜可有效隔离发射星云的红色 Ha 和蓝绿色 OIII 线光，几乎完全抑制光污染、月光和气辉中不需要的波长的光密度 (OD) 4.5。因此，我们的 ALP-T 双波段 5nm 滤光片可为您的图像提供出色的信噪比和更好的对比度。\u003c\/p\u003e\n\n\u003cp\u003e Antlia ALP-T 双波段滤镜可同时捕捉两个主要发射星云波段，同时抑制不必要的光污染。它可让您捕捉更清晰的数据，并减少后期处理工作，以将微弱的细节与背景光污染隔离开来。\u003c\/p\u003e\n\n \u003cp\u003e\u003cstrong\u003e用途与性能：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e专为光学设计，速度低于 f\/3.6\u003c\/p\u003e\n\n\u003cp\u003e专为与 DSLR、CMOS 和 CCD 彩色相机配合使用而设计\u003c\/p\u003e\n\n\u003cp\u003e抑制不需要的波长的光密度 (OD) 4.5 可增加信噪比\u003c\/p\u003e\n\n\u003cp\u003e极其陡峭的带通边缘可最大限度地减少内部反射\u003c\/p\u003e\n\n\u003cp\u003e理想的平顶和中等带通，减少频谱下移\u003c\/p\u003e\n\n\u003cp\u003e双面抛光基板上的离子枪辅助沉积涂层技术使其成为最一致、最精确的光污染抑制滤光片\u003c\/p\u003e\n\n\u003cp\u003e设计用于抑制 Bortle 等级 1 至 Bortle 等级 8 的人工照明\u003c\/p\u003e\n\n\u003cp\u003e近红外 (NIR) 波长最高可达 1050nm\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e技术规格：\u003c\/strong\u003e \u003c\/p\u003e\n\n\u003ctable border=\"1\" width=\"585px\" align=\"LEFT\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"25.3%\"\u003e氢-α\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"24.7%\"\u003e氧气 III\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003e半高宽\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"25.3%\"\u003e5纳米\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"24.7%\"\u003e5纳米\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003eCWL（中心波长）\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"25.3%\"\u003e 657.8纳米\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"24.7%\"\u003e502.2纳米\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003e峰值传输\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"25.3%\"\u003e88％\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"24.7%\"\u003e 82％\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003e阻塞\u003c\/td\u003e\n\n\u003ctd colspan=\"2\" rowspan=\"1\" valign=\"top\"\u003e≥OD4.5 @ 300-1050nm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003e滤光片厚度\u003c\/td\u003e\n\n\u003ctd colspan=\"2\" valign=\"top\"\u003e2毫米+\/-0.05毫米\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e滤镜环：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e 2英寸（M48*0.75）\u003c\/p\u003e\n\n\u003cp\u003e超薄滤光片可最大程度地增大通光孔径，从而最大程度地减少渐晕\u003c\/p\u003e\n\n\u003cp\u003e黑色阳极氧化处理\u003c\/p\u003e\n\n\u003cp\u003e激光雕刻不褪色\u003c\/p\u003e\n\n \u003cp\u003e\u003cstrong\u003e光谱曲线：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/ABUIABACGAAgjqickgYov6i9hwIwwgk4lgw-4.jpg\"\u003e\u003cimg class=\"aligncenter size-full wp-image-138748\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/ABUIABACGAAgjqickgYov6i9hwIwwgk4lgw-4.jpg\" alt=\"\" width=\"1218\" height=\"1558\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e不推荐：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e太阳成像\u003c\/p\u003e\n\n\u003cp\u003e夜间目视观察\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e不允许：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e不要用这个滤镜看太阳\u003c\/p\u003e\n\n\u003cp\u003e如果不遵守警告，将导致严重的眼睛损伤\u003c\/p\u003e","brand":"QHY","offers":[{"title":"Default Title","offer_id":42045283172421,"sku":"40050","price":649.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/antlia-alp-t-dual-band-5nm-filter-2-inchm48-mounted-132422.jpg?v=1731540419"},{"product_id":"alp-t-dual-band-5nm-highspeed-filter","title":"Antlia ALP-T 双波段 5nm 高速滤波器","description":"\u003cp\u003eAntlia ALP-T 双波段 5nm 高速滤镜经过优化，可通过略微移动通带和中心波长来配合高速成像系统使用。与标准版本相比，在 f\/2.2 和 f\/3.6 光学器件之间使用这些高速滤镜，在星云成像中显示出更强大、对比度更高的效果，如果您希望使用任何比 f\/2.2 更快的光学器件获得最佳性能，高速版本是最佳选择。\u003c\/p\u003e\n\n\u003cp\u003e但请记住，计算机模拟的蓝移数据表明，窄带滤光片会将其带宽移至更短的波长，光学速度快于 f\/2，发射波长的透射率可能会降低 15%-20%。虽然 Antlia ALP-T 高速滤光片在快速光学器件上使用时，Ha 和 OIII 的透射率也有类似的降低，但根据当前标准版用户的数据，很明显，该滤光片仍然具有增加发射星云对比度和最小化光晕的高性能。\u003c\/p\u003e\n\n \u003cp\u003e高速版本价格与标准滤光片相同，为高速光学用户带来双重好处。值得一提的是，Antlia 使用 Agilent Cary 的专业分光光度计逐件检查和测量产品，分辨率\/狭缝宽度高达 0.2nm，这使我们能够为您提供高度可靠和一致的产品。\u003c\/p\u003e\n\n \u003cp\u003eAntlia ALP-T 双波段 5nm 系列滤光片是一种双线通滤光片，主要用于单次拍摄彩色 (OSC) 相机，例如 DSLR 和天文 OSC 相机。它还可以用作单色相机的窄带滤光片，以节省成像时间。我们的 ALP-T 超双波段滤光片上的高级多层镀膜可有效隔离发射星云的红色 Ha 和蓝绿色 OIII 线光，几乎完全抑制光污染、月光和气辉中不需要的波长的光密度 (OD)4.5。因此，我们的 ALP-T 双波段 5nm 滤光片可为您的图像提供出色的信噪比和更好的对比度。\u003c\/p\u003e\n\n\u003cp\u003e该滤光片可以同时捕捉两个主要发射星云带，同时抑制不必要的光污染。它可以让您捕捉到更清晰的数据，并减少后期处理工作量，以便将微弱的细节与背景光污染隔离开来。\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e用途与性能：\u003c\/strong\u003e\u003c\/p\u003e\n\n \u003cp\u003e专为快速天文光学设计，特别是 f\/2.2 至 f\/3.6 比率\u003c\/p\u003e\n\n\u003cp\u003e专为与 DSLR、CMOS 和 CCD 彩色相机配合使用而设计\u003c\/p\u003e\n\n\u003cp\u003e抑制不需要的波长的光密度 (OD)4.5 可增加信噪比\u003c\/p\u003e\n\n\u003cp\u003e极其陡峭的带通边缘可最大限度地减少内部反射\u003c\/p\u003e\n\n\u003cp\u003e理想的平顶和中等带通，减少频谱下移\u003c\/p\u003e\n\n\u003cp\u003e双面抛光基板上的离子枪辅助沉积涂层技术使其成为最一致、最精确的光污染抑制滤光片\u003c\/p\u003e\n\n\u003cp\u003e设计用于抑制 Bortle 等级 1 至 Bortle 等级 8 的人工照明\u003c\/p\u003e\n\n\u003cp\u003e近红外 (NIR) 波长最高可达 1050nm\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e技术规格：\u003c\/strong\u003e \u003c\/p\u003e\n\n\u003ctable border=\"1\" width=\"585px\" align=\"LEFT\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003e\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"25.3%\"\u003e氢-α\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"24.7%\"\u003e氧气 III\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003e半高宽\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"25.3%\"\u003e5纳米\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"24.7%\"\u003e5纳米\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003eCWL（中心波长）\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"25.3%\"\u003e 657.8纳米\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"24.7%\"\u003e502.2纳米\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003e峰值传输\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"25.3%\"\u003e88％\u003c\/td\u003e\n\n\u003ctd valign=\"top\" width=\"24.7%\"\u003e 82％\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003e阻塞\u003c\/td\u003e\n\n\u003ctd colspan=\"2\" rowspan=\"1\" valign=\"top\"\u003e≥OD4.5 @ 300-1050nm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd valign=\"top\" width=\"22.6%\"\u003e滤光片厚度\u003c\/td\u003e\n\n\u003ctd colspan=\"2\" valign=\"top\"\u003e2毫米+\/-0.05毫米\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e滤镜环：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e 2英寸（M48*0.75）\u003c\/p\u003e\n\n\u003cp\u003e超薄滤光片可最大程度地增大通光孔径，从而最大程度地减少渐晕\u003c\/p\u003e\n\n\u003cp\u003e黑色阳极氧化处理\u003c\/p\u003e\n\n\u003cp\u003e激光雕刻不褪色\u003c\/p\u003e\n\n \u003cp\u003e\u003cstrong\u003e光谱曲线：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/ABUIABACGAAgjqickgYov6i9hwIwwgk4lgw-4.jpg\"\u003e\u003cimg class=\"aligncenter wp-image-138748 size-full\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/ABUIABACGAAgjqickgYov6i9hwIwwgk4lgw-4.jpg\" alt=\"\" width=\"1218\" height=\"1558\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e不推荐：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e太阳成像\u003c\/p\u003e\n\n\u003cp\u003e夜间目视观察\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e不允许：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e不要用这个滤镜看太阳\u003c\/p\u003e\n\n\u003cp\u003e如果不遵守警告，将导致严重的眼睛损伤\u003c\/p\u003e","brand":"QHY","offers":[{"title":"Default Title","offer_id":42045298114629,"sku":"040052","price":689.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/antlia-alp-t-dual-band-5nm-highspeed-filter-901684.jpg?v=1731540419"},{"product_id":"antlia-oiii-3nm-2inch-filter","title":"Antlia OIII 3nm 2英寸滤镜","description":"\u003cp\u003eAntlia OIII 3nm Pro 窄带滤光片将 FWHM（半峰全宽）优化至 3nm\u003cins cite=\"mailto:Ted%20Dobosz\" datetime=\"2021-01-06T13:06\"\u003e \u003c\/ins\u003e带通。随着带宽变窄，3nm Pro 窄带滤光片通过降低不需要的背景信号来增强发射目标的对比度。Antlia OIII 3nm Pro 滤光片旨在在 500.7nm 线上提供 85% 的透射率，为您提供最大信号和清晰的星云结构。\u003c\/p\u003e\n\n\u003cp\u003e传统的较宽窄带滤光片由于中心波长 (CWL) 偏移较大，会导致传输损失严重。我们保证在中心带宽 1nm 范围内 T\u0026gt;85%，这意味着 3nm Pro 窄带滤光片可以保证高透射率，适用于长焦比和快速光学系统。Blueshift 数据显示，Antlia 3nm Pro 滤光片可以与几乎所有速度高达 f\/3 的系统一起使用，发射信号损失最小，并满足 Hyperstar 和 RASA 等快速光学器件的要求。\u003c\/p\u003e\n\n \u003cp\u003e带外阻断规格为 OD5（0.001%），可提供出色的 SNR（信噪比）和有效截止率，以最大限度地减少来自其他波长的干扰。改进的锐利截止天文摄影 3nm Pro 滤镜旨在最大限度地减少明亮恒星周围的光晕。\u003c\/p\u003e\n\n\u003ch6\u003e\u003cspan style=\"color: #f79b65;\"\u003e用途与性能：\u003c\/span\u003e\u003c\/h6\u003e\n\n\u003cp\u003e高透射率和最小带宽可最大程度地提高对比度\u003c\/p\u003e\n\n\u003cp\u003e陡峭的光谱轮廓最大程度地减少了明亮恒星周围的光晕\u003c\/p\u003e\n\n\u003cp\u003e单一基板可消除内部反射\u003c\/p\u003e\n\n\u003cp\u003e窄带物体：OIII 发射星云、行星、沃尔夫-拉叶星云和超新星遗迹\u003c\/p\u003e\n\n\u003cp\u003e在光污染区域和黑暗场所使用\u003c\/p\u003e\n\n\u003cp\u003e月亮升起时延长成像时间\u003c\/p\u003e\n\n\u003cp\u003eAntlia 窄带 Pro 滤波器可用于 F\/3 系统，信号损失轻微\u003c\/p\u003e\n\n\u003cp\u003e所有 Antlia 窄带滤光片的边缘均经过涂黑处理，以消除杂散光的内部反射\u003c\/p\u003e\n\n\u003cp\u003e卓越的光学可靠性减少了后期图像处理\u003c\/p\u003e\n\n \u003cp\u003e此滤镜不适用于不含 OIII 发射的深空物体。\u003c\/p\u003e\n\n\u003ch6\u003e\u003cspan style=\"color: #f79b65;\"\u003e技术规格：\u003c\/span\u003e\u003c\/h6\u003e\n\n\u003cp\u003e\u003cstrong\u003e基础基材：\u003c\/strong\u003e光学基材\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e滤光片厚度：\u003c\/strong\u003e 2mm+\/-0.05mm（2'' 安装）\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eFWHM（半峰全宽）：\u003c\/strong\u003e 3nm\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eCWL（中心波长）\u003c\/strong\u003e ：500.7nm\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e峰值透过率：\u003c\/strong\u003e ＞85%\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e阻断：\u003c\/strong\u003e \u0026gt; 5 OD（0.001% 带外阻断）@ 300-1000nm\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e表面质量：\u003c\/strong\u003e S\/D（划痕\/凹陷）= 60\/40（参考 MIL-O-13830）\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e透射波前：\u003c\/strong\u003e Lambda\/4 或更好。\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e平行度：\u003c\/strong\u003e小于 30 角秒\u003c\/p\u003e\n\n\u003cp\u003e单面\/无胶基材\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #f79b65;\"\u003e保修：3 年防脱层保修\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch6\u003e请勿使用 ANTLIA 滤镜观察太阳。\u003c\/h6\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n \u003cp\u003e当我们为天文成像系统设计滤光片时，我们会考虑它们如何与光学系统协同工作，精心设计阻塞和带通参数以实现最佳效果。带外阻塞率是一项非常重要的性能指标，因为它旨在急剧衰减带外波长。结果是 Antlia OIII 3nm Pro 滤光片在极暗的背景下提供出色的对比度，同时提供 OIII 信号的高传输率。这种滤光片更难以生产出始终如一的高标准。\u003c\/p\u003e\n\n\u003cp\u003e每片滤镜都经过单独测试和扫描，以确保质量符合高性能参数。最终结果是滤镜实现了出色的对比度，但生产成本较高。我们认为性价比比市场上类似的优质滤镜更具优势。\u003c\/p\u003e\n\n\u003cp\u003e SKU： ANTLIAOIII3nm2\u003c\/p\u003e","brand":"QHY","offers":[{"title":"Default Title","offer_id":42045303291973,"sku":"ANTLIAOIII3nm2","price":679.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/antlia-oiii-3nm-2inch-filter-946269.jpg?v=1731540419"},{"product_id":"antlia-sii-3nm-2inch-filter","title":"Antlia SII 3nm 2英寸滤镜","description":"\u003cp\u003eAntlia SII 3nm Pro 窄带滤光片将 FWHM（半峰全宽）优化至 3nm 带通。随着带宽变窄，3nm Pro 窄带滤光片通过降低不需要的背景信号来增强发射目标的对比度。Antlia SII 3nm Pro 滤光片旨在在 671.6nm 线上提供 88% 的透射率，为您提供最大信号和清晰的星云结构。\u003c\/p\u003e\n\n \u003cp\u003e传统的较宽窄带滤光片由于强烈的中心波长 (CWL) 偏移而导致传输严重损失。我们保证在中心带宽 1nm 范围内 T\u0026gt;88%，这意味着 3nm Pro 窄带滤光片可以保证高透射率，适用于长焦比和快速光学系统。蓝移数据显示，Antlia SII 3nm Pro 滤光片几乎可以与所有速度高达 f\/3 的系统一起使用，发射信号损失最小，并满足 Hyperstar 和 RASA 等快速光学器件的要求。\u003c\/p\u003e\n\n\u003cp\u003e带外阻断规格为 OD5（0.001%），可提供出色的 SNR（信噪比）和有效截止率，以最大限度地减少来自其他波长的干扰。改进的锐利截止天文摄影 3nm Pro 滤镜旨在最大限度地减少明亮恒星周围的光晕。\u003c\/p\u003e\n\n\u003ch6\u003e\u003cspan style=\"color: #fab25a;\"\u003e用途与性能： \u003cimg class=\"alignright wp-image-145792\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Antlia-SII.jpg\" alt=\"Antlia SII 3nm\" width=\"439\" height=\"439\"\u003e\u003c\/span\u003e\u003c\/h6\u003e\n\n\u003cp\u003e高透射率和最小带宽可最大程度地提高对比度\u003c\/p\u003e\n\n \u003cp\u003e陡峭的光谱轮廓最大程度地减少了明亮恒星周围的光晕\u003c\/p\u003e\n\n\u003cp\u003e单一基板可消除内部反射\u003c\/p\u003e\n\n\u003cp\u003e窄带物体：SII 发射星云、行星、沃尔夫-拉叶星云和超新星遗迹\u003c\/p\u003e\n\n\u003cp\u003e在光污染区域和黑暗场所使用\u003c\/p\u003e\n\n\u003cp\u003e月亮升起时延长成像时间\u003c\/p\u003e\n\n\u003cp\u003e所有 Antlia 窄带 Pro 滤镜均可在 F\/3 下使用，但信号会略有损失\u003c\/p\u003e\n\n\u003cp\u003e所有 Antlia 窄带滤光片的边缘均经过涂黑处理，以消除杂散光的内部反射\u003c\/p\u003e\n\n\u003cp\u003e卓越的光学可靠性减少了后期图像处理\u003c\/p\u003e\n\n\u003cp\u003e该滤镜不适用于不包含 SII 发射的深空物体。\u003c\/p\u003e\n\n\u003ch6\u003e\u003cspan style=\"color: #fab25a;\"\u003e技术规格：\u003c\/span\u003e\u003c\/h6\u003e\n\n\u003cp\u003e\u003cstrong\u003e基础基板：\u003c\/strong\u003e肖特光学基板\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e滤光片厚度：\u003c\/strong\u003e 2mm+\/-0.05mm（2''安装）\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eFWHM（半峰全宽）：\u003c\/strong\u003e 3nm\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eCWL（中心波长）\u003c\/strong\u003e ：671.6nm\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e峰值透过率：\u003c\/strong\u003e ＞88%\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e阻断：\u003c\/strong\u003e \u0026gt; 5 OD（0.001% 带外阻断）@ 300-1000nm\u003c\/p\u003e\n\n \u003cp\u003e\u003cstrong\u003e表面质量：\u003c\/strong\u003e S\/D（划痕\/凹陷）= 60\/40（参考 MIL-O-13830）\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e透射波前：\u003c\/strong\u003e Lambda\/4 或更好。\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e平行度：\u003c\/strong\u003e小于 30 角秒\u003c\/p\u003e\n\n\u003cp\u003e单面\/无胶基材\u003c\/p\u003e\n\n\u003ch6\u003e\u003cspan style=\"color: #fab25a;\"\u003e保修：3 年防脱层\u003c\/span\u003e\u003c\/h6\u003e\n\n\u003cp\u003eSKU： ANTLIASii3nm2\u003c\/p\u003e","brand":"QHY","offers":[{"title":"Default Title","offer_id":42045303423045,"sku":"ANTLIASii3nm2","price":679.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/antlia-sii-3nm-2inch-filter-859733.jpg?v=1731540420"},{"product_id":"optolong-l-extreme-f-2-filter-2-inch","title":"Optolong L-eXtreme f\/2 滤镜 2 英寸","description":"\u003cp\u003e\u003cstrong\u003e1. L-eXtreme F\/2 简介\u003c\/strong\u003e\u003c\/p\u003e\n\n \u003cp\u003eOptolong L-eXtreme F\/2 是一款双波段（500.7 nm 和 656.28 nm，FWHM=7 nm）窄带通滤光片，满足连续变化角度的透射要求。以天文特征谱线（OIII、Ha）为主要透射波长，OIII 和 H-Alpha 星云发射线在 f2 - f3.3 焦比下准确通过。这是 Optolong 专门为快速光学系统或快速焦比成像系统开发的产品。它在 RASA、HyperStar 和其他快速焦比望远镜上表现良好。\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e主要特点：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e ♦与单次彩色天文相机、单色天文相机、数码单反相机配合使用，可以快速获得清晰细致的深空图像；\u003c\/p\u003e\n\n\u003cp\u003e ♦非常适合快速光学系统，如RASA、Hyperstar和其他快速焦比望远镜用户；\u003c\/p\u003e\n\n\u003cp\u003e ♦建议使用焦比为f2至f3.3的快速光学系统；\u003c\/p\u003e\n\n \u003cp\u003e♦抗光污染、对比度更好、天体细节更多：此滤镜可滤除目标天体以外的背景光和噪音，以获得更佳的图像细节和对比度。L-eXtreme F\/2 可有效阻挡光污染，使图像不会受到背景中不必要的灯光和天光的影响。您可以在快速光学系统中快速获得满意的图像。\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003e2. 光谱及特性\u003c\/strong\u003e\u003c\/p\u003e\n\n \u003cp\u003e\u003cspan style=\"letter-spacing: 0em;\"\u003eL-eXtreme F\/2 针对天体的发射线和光污染发射线特点，在遮挡大部分光污染的同时，保留了星云 OIII 和 Ha 的突出色彩。L-eXtreme F2 针对快速光学系统的特点进行了专门设计和优化计算，始终保持 OIII 和 Ha 两个波段的高透过率，帮助用户更准确、更快速地捕捉这些波段的星云发射线，获得更好的天文摄影图像。\u003c\/span\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cimg class=\"aligncenter wp-image-145765 size-full\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/L-eXtreme-f2a.jpg\" alt=\"L-eXtreme F\/2\" width=\"1000\" height=\"1015\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e如何读图表？\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e ▲横轴为波长，单位为纳米（nm）。\u003c\/p\u003e\n\n\u003cp\u003e ▲纵轴表示透射率，单位为%。 \u003c\/p\u003e\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/0ff2d7f395c427aa390ff53daf333cec-1.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003e3. 涂层技术\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e·多层增透膜\u003c\/p\u003e\n\n\u003cp\u003e·非胶粘型光学基片镀膜\u003c\/p\u003e\n\n \u003cp\u003e·Optolong滤镜采用基于离子辅助沉积镀膜技术的精密镀膜，经久耐用，耐刮擦，中心波长稳定，不受温度变化的影响。\u003c\/p\u003e\n\n\u003cp\u003e ·行星旋转系统提供涂层的精确性和均匀性，确保通带透射率和带外光密度的高值。\u003c\/p\u003e\n\n\u003cp\u003e库存单位：14803\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"Default Title","offer_id":42045303750725,"sku":"14803","price":539.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/optolong-l-extreme-f2-filter-2-inch-947434.jpg?v=1731540833"},{"product_id":"optolong-l-quad-enhance-filter-2inch","title":"Optolong L-Quad 增强滤镜 2英寸","description":"\u003cp\u003eL-四通增强滤镜（L-QEF）是一款用于彩色相机的四通光污染抑制滤镜。它有效地抑制了光污染波长的透射，特别是人工照明（包括汞灯和钠灯）产生的光污染，以及自然天光对拍摄的影响，从而有效地增强了天体的对比度和细节，使物体更加清晰和立体。这款滤镜在提高抗光污染能力的同时，提供了更好的色彩平衡。L-QEF 既可用于广角天文摄影，如夏季和冬季的银河系，也可用于深空物体，如星云、星系、星团等；它可以让您在拍摄过程中节省大量时间，同时获得更好的效果。四通的设计最大限度地提高了星云、星系和其他宽带光谱目标的色彩平衡。\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e主要特点：\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n \u003cli\u003e消除汞灯和钠灯的光污染，并产生色偏最小的优质宽带图像；\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan style=\"letter-spacing: 0em;\"\u003e信噪比（SNR）；\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan style=\"letter-spacing: 0em;\"\u003e近红外截止至 1000nm，降低红外噪声的影响；\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan style=\"letter-spacing: 0em;\"\u003eL-QEF对H-Beta\/OIII\/H-Alpha\/SII星云发射线的透过率超过90%，截止深度从OD2到OD4，抗光污染能力大大提高。L-QEF适用于Bortel 1到Bortel 7级的夜空；（不建议使用Bortel 8、Bortel 9环境，请选择Optolong其他窄带滤光片，3nm、7nm类型的滤光片可用。）\u003c\/span\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\u003cspan style=\"letter-spacing: 0em;\"\u003e适用于广泛的深空目标：它覆盖了大多数星云、星系、星团、反射和发射的线信号天文物体，具有更高的对比度和丰富的细节，同时保持了出色的色彩平衡。L-QEF 优于其他同类型的滤镜。\u003c\/span\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch5\u003e\u003cstrong\u003e光谱及特性\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003ctable style=\"height: 206px;\" border=\"1\" width=\"724\" cellspacing=\"1\" cellpadding=\"1\" align=\"center\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e布他林\u003c\/td\u003e\n\n\u003ctd\u003e光学玻璃\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e厚度\u003c\/td\u003e\n\n\u003ctd\u003e1.85 毫米\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e半高宽\u003c\/td\u003e\n\n\u003ctd\u003e四带通滤波器\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e阻断范围\u003c\/td\u003e\n\n\u003ctd\u003e300-1000纳米\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e阻挡深度\u003c\/td\u003e\n\n\u003ctd\u003eOD2-OD4\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e表面质量\u003c\/td\u003e\n\n\u003ctd\u003e60\/40\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e透射波前 RMS\u003c\/td\u003e\n\n\u003ctd\u003e λ \/ 4\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e并行性\u003c\/td\u003e\n\n\u003ctd\u003e30 秒\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003eL-Quad Enhance 滤镜根据天体发射线和光污染发射线的特点，有效降低光污染的影响，抑制天体背景光，从而有效增强天体的对比度和细节。使用 L-QEF 滤镜可以帮助您在拍摄过程中节省大量时间，同时获得令人难以置信的效果。 \u003c\/p\u003e\n\n\u003cp\u003e\u003cimg class=\"alignnone wp-image-145519 size-medium\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Quadband-800x391.jpg\" alt=\"Optolong L-Quad\" width=\"800\" height=\"391\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"Default Title","offer_id":42045303914565,"sku":"14702","price":329.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/optolong-l-quad-enhance-filter-2inch-456161.jpg?v=1731540833"},{"product_id":"optolong-l-ultimate-filter-2-inch","title":"Optolong L-Ultimate 滤镜 2英寸","description":"\u003cp\u003e它是一种 3nm 双波段，旨在大幅减少光污染的影响，3nm 将星云的辐射隔离为 H-Alpha（红色）和 OIII（绿-蓝）。它可以阻挡光污染，最大化​​星云信号，并使天空背景变暗。它还可以阻挡汞蒸气灯、高压和低压钠蒸气灯的人造光以及由我们大气中的中性氧排放引起的不必要的自然光。最大化星云在 OIII（496nm 和 500nm）和 H-alpha（656nm）中的主要发射线的传输。但是，与 DSLR、彩色\/MONO CMOS 和 CCD 一起使用时，此滤镜不适用于快速比率系统。\u003c\/p\u003e\n\n \u003cp\u003eL-Ultimate的优点在于只通过发射线OIII(500.7nm)和Ha(656.3nm)，这样其他光污染发射线全部被排除，成像时只捕捉到星云的发射和反射信号，因此图像的天空背景更暗，最大程度提升了星云的对比度和信噪比。在重光污染区域，该产品还能选择性地过滤通过星云发射线的光污染和杂波信号，最终避免光污染对天文摄影的影响。\u003c\/p\u003e\n\n \u003cp\u003e与双窄带 L-eNhance 和 L-eXtreme 系列不同的是，L-Ultimate 是一款双 3nm 带宽滤镜，只通过 Ha 和 OIII 发射线。您将获得更暗的天空背景，图像对比度更高，对星星的抑制也更强。L-Ultimate 在光晕性能方面也进行了优化，因此在对亮星物体进行拍摄时不会出现明显的光晕。 \u003c\/p\u003e\n\n\u003cp\u003e\u003cimg class=\"alignnone size-medium wp-image-145496\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Graph--800x392.png\" alt=\"\" width=\"800\" height=\"392\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e特征\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ctable style=\"height: 203px;\" border=\"1\" width=\"600\" cellspacing=\"2\" cellpadding=\"1\" align=\"center\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cb\u003e基材\u003c\/b\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003e光学玻璃\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003e半高宽\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003eOIII 3纳米 Ha 3纳米\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003e阻断范围\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003e300-1000纳米\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003e阻塞\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003e\u0026gt;OD4\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003e表面质量\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003e60\/40\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003e透射波前 RMS：\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e \u003cstrong\u003eλ \/ 4\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003e并行性\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003e30秒\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003cp\u003e\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25 inch","offer_id":43103921078341,"sku":"11601","price":500.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch","offer_id":43103921111109,"sku":"11602","price":670.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/optolong-l-ultimate-filter-2-inch-880415.jpg?v=1731540833"},{"product_id":"optolong-l-pro-filter","title":"Optolong L-Pro Filter","description":"\u003cp\u003eOptolong L-Pro 1.25 inch is multi-bandpass filter which offers better color balance by maximizing the transmission band. The balanced transmission allows astrophotos to be taken with minimal color cast to broadband emission objects such as galaxies, reflection nebulae and globular star clusters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003eWarning - Do not use this filter for solar purposes ! \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOptolong L-Pro (L-Professional) filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high \u0026amp; low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photograghic purpose at sub-rural area with heavy light pollution.\u003c\/p\u003e\n\u003cp\u003eOptolong L-Pro is multi-bandpass filter which offers better color balance by maximizing the transmission band. The balanced transmission allows astrophotos to be taken with minimal color cast to broadband emission objects such as galaxies, reflection nebulae and globular star clusters. L-Pro is the best choice for light pollution suppression.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptical glass fine material\u003c\/li\u003e\n\u003cli\u003eSpectrum: 380-750nm\u003c\/li\u003e\n\u003cli\u003eSurface Quality: 60\/40 (Refer to MIL-O-13830)\u003c\/li\u003e\n\u003cli\u003eFine-optically polished to ensure accurate 1\/4 wavefront and \u0026lt; 30 seconds parallelism over the both surfaces\u003c\/li\u003e\n\u003cli\u003eHigh transmission at major nebula emission lines (i.e. H-alpha 656nm, OIII 496nm\u0026amp;500nm, SII 672nm and H-beta 486nm).\u003c\/li\u003e\n\u003cli\u003ePrecision off-band blocking, specifically the major emission lines of artificial light pollution (i.e. Na 589nm, Hg 435nm and 578nm).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-medium wp-image-145135\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Optolong-l-pro-light-curve--800x422.jpg\" alt=\"\" width=\"800\" height=\"422\"\u003e\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25 inch","offer_id":42151311409221,"sku":"10201","price":260.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch","offer_id":42151311441989,"sku":"10202","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS-C","offer_id":42151311474757,"sku":"10203","price":430.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS-FF","offer_id":42151311507525,"sku":"10204","price":470.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon NK-FF","offer_id":42151311540293,"sku":"10205","price":470.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/optolong-l-pro-filter-2-inch-706785.jpg?v=1731540833"},{"product_id":"optolong-l-enhance-filter","title":"Optolong L-eNhance filter","description":"\u003cp\u003e\u003cstrong\u003eL-eNhance filter\u003c\/strong\u003e\u003cbr\u003eThe relentless spread of urbanization and its associated light pollution have become a growing problem for all amateur astrophotographers. The current solutions to the problem can be expensive and might include the purchase of a monochrome camera, several types of narrowband filters, and a filter wheel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptolong L-eNhance\u003c\/strong\u003e filter provides an economical and practical solution for amateurs. It is a dual-band pass filter that has been designed for DSLR (digital SLR), color CMOS, and monochrome CCD cameras. The convenience and cost-effectiveness of this filter allow amateurs to image a rich selection of astronomical images, even in bright, heavily light-polluted areas. Optolong believes the design of our L-eNhance filter is a technical innovation among filters. It effectively isolates the H-Alpha, H-Beta, and Oxygen III nebula emission lines and achieves a maximum transmission of up to 90%. The performance of this filter delivers images that superbly control the impact of light-polluted skies.\u003c\/p\u003e\n\u003cp\u003eHydrogen is the largest, the most primitive, the simplest, and the oldest element in the universe. Scientists consider that Hydrogen amounts to more than 90% of visible substances in space. Our sun is 5 billion years old, but so far hydrogen is still the key matter of nuclear fusion. While the sulfur element does not have much scientific significance, keeping H and O is meaningful for the exploration of life.\u003cbr\u003eTherefore, we highlight H-a, H-b, O3, and O2, and reduce the signal of sulfur.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Spectrum and Characteristic\u003c\/strong\u003e\u003cbr\u003eSubstrate: B270\u003cbr\u003eThickness: 1.85mm\u003cbr\u003eTpeak: T\u0026gt;90%\u003cbr\u003eBlocking range: 300-1000nm\u003cbr\u003eBlocking depth: light pollution line blocking \u0026gt;99%\u003cbr\u003eSurface quality: 60\/40\u003cbr\u003eTransmitted Wavefront RMS: λ\/4\u003cbr\u003eParallelism: 30s\u003c\/p\u003e\n\u003cp\u003e\u003cimg height=\"488\" width=\"1000\" alt=\"L-eNhance filter 1.25\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/L-enhnce-125c.jpg\" class=\"aligncenter wp-image-145746 size-full\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/L-enhnce-125c.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003eHow to read the chart?\u003c\/p\u003e\n\u003cp\u003e▲The horizontal axis is the Wavelength in Nanometers(nm).\u003c\/p\u003e\n\u003cp\u003e▲The vertical axis is transmission in %.\u003c\/p\u003e\n\u003cp\u003e▲The WHITE line shows the transmission of the filter. The artificial emission lines are shown in Yellow. The emission lines from the constellation are shown in GREEN, BLUE, AND RED.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/0ff2d7f395c427aa390ff53daf333cec.jpg\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/0ff2d7f395c427aa390ff53daf333cec.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003eSKU: 13801\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25 inch","offer_id":42151578140741,"sku":"13801","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch","offer_id":42151578173509,"sku":"13802","price":400.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS-C","offer_id":42151578206277,"sku":"13804","price":450.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/optolong-l-enhance-filter-125-inch-180620.jpg?v=1731540834"},{"product_id":"optolong-l-extreme-filter","title":"Optolong L-eXtreme filter","description":"\u003cp\u003eL-eXtreme is a two 7nm bandpass filter which can be used with one-shot color cameras like DSLR's (digital SLR), and monochrome CCD cameras, it is also more suited for fast systems. The convenience and cost effectiveness of this filter allows amateurs to image a rich emission nebulas, even in bright, light pollution skies. Optolong believes the design of L-eXtreme filter would be better choice for fast systems in competitive price. It isolates the H-Alpha, and Oxygen III nebula emission lines so that the contrast and signal-to-noise ratio between nebulae were maximized. For people who is living in very light polluted areas, or when the moon is out, the L-eXtreme will be a good filter.\u003c\/p\u003e\n\u003cp\u003eUnlike the Optolong L-eNhance filter which is a tri-band (transmits Hb, Ha, and OIII), the L-eXtreme filter is dual band that passes Ha and OIII emission lines.The advantage of the L-eXtreme filter is that there is no transmission between the H-beta and OIII lines, as there is no nebula emission lines there. In this case, it isn't letting light pollution come through so that maximize nebulas signal and make the sky background darker while imaging. The L-eXtreme filter should better isolate the emission lines only and better protect from light pollution.\u003c\/p\u003e\n\u003cp\u003eHydrogen is the largest, the most primitive, the simplest, and the oldest element in the universe. Scientists consider that Hydrogen amounts to more than 90% of visible substance in space. Our sun is 5 billion years old, but so far hydrogen is still the key matter of nuclear fusion. While the sulfur element does not have much scientific significance, so keeping H and O is meaning for exploration of life.\u003cbr\u003eTherefore, we highlight H-a, H-b, O3 and O2, and reduce the signal of sulfur.\u003c\/p\u003e\n\u003ch5\u003eSpectrum and Characteristics\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eSbustrate: B270\u003c\/li\u003e\n\u003cli\u003eThickness: 1.85mm\u003c\/li\u003e\n\u003cli\u003eTpeak: T\u0026gt;90%\u003c\/li\u003e\n\u003cli\u003eBlocking range: 300-1000nm\u003c\/li\u003e\n\u003cli\u003eBlcoking depth: light pollution line blocking \u0026gt;99%\u003c\/li\u003e\n\u003cli\u003eSurface quality: 60\/40\u003c\/li\u003e\n\u003cli\u003eTransmitted Wavefront RMS: λ\/4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg class=\"alignnone size-medium wp-image-145155\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Optolong-L-eXtreme-curve--800x386.jpg\" alt=\"\" width=\"800\" height=\"386\"\u003e\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25 inch","offer_id":42151619723333,"sku":"13901","price":420.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch","offer_id":42151619756101,"sku":"13902","price":540.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon Z Clip-In","offer_id":44862003740741,"sku":"AS100313","price":420.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/optolong-l-extreme-filter-2-inch-422662.jpg?v=1731540833"},{"product_id":"optolong-lrgb-filters","title":"Optolong LRGB Filters","description":"\u003cp\u003e\u003cspan\u003eOptolong LRGB filter set is designed for maximum contrast and with extremely high gradients for clear differentiation of colors. The LRGB filter set divides the spectrum into its components red, green, blue and luminance. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOIII emission overlaps on blue and green filters with maximum transmission to allow high efficiency and natural color imaging. Gap between green and red filters serves to block out the primary Sodium light pollution line at 589nm and improves color balance and separation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRGB, parfocal:1:1:1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCreat images in their true original colors showing a wealth of natural detail;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSteep bandpass filters to eliminate UV and IR interference;\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInclude Luminance (UV\/IR Cut), Red, Green, and Blue filters to reproduce the star's color\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/www.optolong.com\/uploads\/images\/20210508\/27fe738c2ce6a5a69e998d648cc17b60.png\" width=\"853\" height=\"528\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Optolong","offers":[{"title":"1.25 inch","offer_id":42151690600517,"sku":"Opto-LRGB125","price":400.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch","offer_id":42151690633285,"sku":"Opto-LRGB2","price":620.0,"currency_code":"AUD","in_stock":true},{"title":"36mm","offer_id":42151690698821,"sku":"Opto-LRGB36","price":470.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/OptolongLRGB.jpg?v=1731547539"},{"product_id":"optolong-uhc-filter","title":"Optolong UHC filter","description":"\u003cp\u003e\u003cspan\u003eThe UHC (Ultra High Contrast) broadband filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps, both high \u0026amp; low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) as well as SII(672nm), the filter is suitable for enhancing the contrast and details for both visual and photograghic purpose at sub-rural area with heavy light pollution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMain Use and Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for color CCD cameras and unmodified DSLRs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUHC with narrower passband provides higher contrast than CLS. Thus it is more suitable for urban environment where you suffer from severe light pollution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUHC has a substantial red passband and offer superb views for objects like the Orion Nebula (M42).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLight pollution filter do not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cu\u003eWARNING\u003c\/u\u003e: The filters of Optolong are not designed for sun observation. DO NOT LOOK AT THE SUN WITH OPTOLONG FILTER. You would be BLIND if you fail to observe the warning.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"438\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"187\"\u003e\n\u003ccol width=\"251\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr height=\"20\"\u003e\n\u003ctd height=\"20\" class=\"xl65\" width=\"187\"\u003eSbustrate\u003c\/td\u003e\n\u003ctd width=\"251\"\u003eoptical glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"20\"\u003e\n\u003ctd height=\"20\" class=\"xl65\"\u003e\u003cspan\u003eTave\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"20\"\u003e\n\u003ctd height=\"20\" class=\"xl65\"\u003e\u003cspan\u003eBlocking range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e300-700nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"20\"\u003e\n\u003ctd height=\"20\" class=\"xl65\"\u003e\u003cspan\u003eBlcoking depth\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd class=\"xl65\"\u003eOD3, light pollution line blocking \u0026gt;99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"20\"\u003e\n\u003ctd height=\"20\" class=\"xl65\"\u003e\u003cspan\u003eSurface quality\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e60\/40 (Refer to MIL-O-13830A, MIL-C-48497A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"20\"\u003e\n\u003ctd height=\"20\" class=\"xl65\"\u003e\u003cspan\u003eTransmitted Wavefront RMS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e  ¼ λ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"20\"\u003e\n\u003ctd height=\"20\" class=\"xl65\"\u003e\u003cspan\u003e Parallelism\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e30s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Optolong","offers":[{"title":"1.25 inch","offer_id":42152607547461,"sku":"10101","price":99.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch","offer_id":42152607580229,"sku":"10102","price":150.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS-C","offer_id":42152607612997,"sku":"10103","price":170.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS-FF","offer_id":42152607645765,"sku":"10104","price":200.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon NK-FF","offer_id":42152607678533,"sku":"10105","price":200.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/OptolongUHC.jpg?v=1731557654"},{"product_id":"astronomik-uhc-filter","title":"Astronomik UHC Filter","description":"\u003cp\u003e\u003cstrong\u003eThe Astronomik UHC is THE filter for visual observing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will enjoy using your Astronomik UHC filter because you will see more stars and more details in deep-sky-objects compared to using filters from all other manufacturers.\u003cbr\u003e\u003cbr\u003eThe Astronomik UHC (Ultra High Contrast) filter allows the transmission of nearly 100% of the radiation from both O-III and the H beta lines. Though the second window for the H-alpha-line is not intended for visual observing, it is important, if the filter is used with an electronic device. All annoying, scattered light from other wavelength sources, including local artificial light pollution, is reliably filtered out. With this strong blocking of the sky background an unexpected wealth of detail becomes visible for gas nebulae and planetary nebulae.\u003c\/p\u003e\n\u003ch4\u003eMain use\u003c\/h4\u003e\n\u003cp\u003eAstronomik UHC filters’ astounding high light transmission brings better views of deep-sky-objects even to small telescopes! The high transmission of our optical glass filters means that enough light is available to allow successful visual observations with telescopes beginning at 2\" (50mm) aperture. Our Astronomik filters are optimized for use with telescope focal length f \/ ratios of f\/4 to f\/15. Transmission losses and chromatic distortions, which arise with other filters, only occur with Astronomik filters when extremely bright aperture ratios of 1:2 and more come into play. Another major advantage of our Astronomik UHC filter is the high optical quality of the filter glass. When using Astronomik UHC filters you will quickly notice the same needle-sharp stars which you are familiar with from your astronomical instrument without any filter!\u003c\/p\u003e\n\u003ch4\u003eSuitability\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (dark skies): Very good, for telescopes of all apertures and high exit pupil\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban skies): Very good, for telescops from 100 mm aperture\u003c\/li\u003e\n\u003cli\u003eFilm photography: Reasonable, but very long exposure time\u003c\/li\u003e\n\u003cli\u003eCCD photography: Good, when used with an additional IR-block-filter\u003c\/li\u003e\n\u003cli\u003eDSLR photography (original): Good, colour balance shifted but contrast enhanced\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro modified): Very good, colour balance is near perfect\u003c\/li\u003e\n\u003cli\u003eDSLR photography (MC modified): Good, when used with an additional IR-block-filter\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Planets): Unsuitable\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Deep Sky): Good, if light pollution is a big problem\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003etyp. 95% transmission at 486nm (H-beta)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003etyp. 95% transmission at 496nm (O\u003c\/span\u003e\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003etyp. 95% transmission at 501nm (O\u003c\/span\u003e\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003etyp. 95% transmission at 656nm (H alpha)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eoptimum position of transmission for telescopes with focal ratios from f\/10 to f\/3,5\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEntire Blocking of annoying wavelengths\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIdeal All-round Deep Sky filter even for small telescopes\u003c\/li\u003e\n\u003cli\u003eNot sensitive to humidity or aging\u003c\/li\u003e\n\u003cli\u003eScratch-resistant!\u003c\/li\u003e\n\u003cli\u003eExcellent carrier material. The optical performance of your telescope is not reduced by the filter in any way.\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity, scratches and aging effects\u003c\/li\u003e\n\u003cli\u003eDiffraction limited, the filter will not reduce the optical performance of your telescope!\u003c\/li\u003e\n\u003cli\u003eAstronomik filters are delivered in a high-quality, long lasting, filter box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik_uhc_trans-2.png?v=1731644379\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156068634693,"sku":"8h0011","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156068667461,"sku":"8h0012","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS APS-C Clip","offer_id":42156068700229,"sku":"8h00ie","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"Cannon XT EOS APS-C Clip","offer_id":42156068732997,"sku":"8h00kr","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS XL Clip","offer_id":42156068765765,"sku":"8h00ls","price":340.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS R XL Clip","offer_id":42156068798533,"sku":"8h11g5","price":365.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS M Clip","offer_id":42156068831301,"sku":"8h00r8","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"Sony alpha 7 Clip","offer_id":42156068864069,"sku":"8h00xc","price":365.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon XL Clip","offer_id":42156068896837,"sku":"8h11au","price":365.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon Z XL Clip","offer_id":42156068929605,"sku":"8h11kv","price":365.0,"currency_code":"AUD","in_stock":true},{"title":"Pentax K-1 Clip","offer_id":42156068962373,"sku":"8h11ei","price":365.0,"currency_code":"AUD","in_stock":true},{"title":"T-Mount (M42x075)","offer_id":42156068995141,"sku":"8h00iw","price":280.0,"currency_code":"AUD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":42156069027909,"sku":"8h00hz","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"31 mm","offer_id":42156069060677,"sku":"8h00i0","price":195.0,"currency_code":"AUD","in_stock":true},{"title":"36 mm","offer_id":42156069093445,"sku":"8h00i1","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"50 mm","offer_id":42156069126213,"sku":"8h00a0","price":325.0,"currency_code":"AUD","in_stock":true},{"title":"M49","offer_id":42156069158981,"sku":"8h11jm","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"M52","offer_id":42156069191749,"sku":"8h11jm","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"50 x 50mm² Unmounted","offer_id":42156069224517,"sku":"8h00bs","price":365.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_UHC_1_25-Inch_4.jpg?v=1731644618"},{"product_id":"astronomik-uhc-e-filter","title":"Astronomik UHC-E Filter","description":"\u003cp\u003eThe UHC-E Filter increases contrast of emission nebulae and comets and blocks the light of typical streetlights as well as airglow. It is best suited for telescopes up to 5\" \/ 125mm.\u003c\/p\u003e\n\u003ch4\u003eMain use\u003c\/h4\u003e\n\u003cp\u003eThe Astronomik UHC-E filter provides a FWHM of 45nm and blocks the light of typical streetlights (e.g. sodium and mercury vapour) as well as airglow. Thus it increases contrast between your target and the night sky. The contrast enhancement is less than that of the Astronomik UHC filter, but at the same time the transmitted amount of starlight is greater. It's therefore better suited to smaller telescopes. As the UHC-E filter passes a spectral line of Carbon (due to the higher FWHM) it opens up the possibility of comet observation.\u003c\/p\u003e\n\u003ch4\u003eOther uses\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eObservation of Jupiter’s clouds.\u003c\/li\u003e\n\u003cli\u003eEasier resolution of Double Stars.\u003c\/li\u003e\n\u003cli\u003ePhotography under light-polluted skies with DSLRs and other cameras.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik_uhc-e_trans.png?v=1731642724\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003eSuitability\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (dark skies): Reasonable, an UHC filter is more suitable\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban skies): Good, for telescopes up to 125 mm aperture and medium exit pupil\u003c\/li\u003e\n\u003cli\u003eFilm photography: Good, but very long exposure times\u003c\/li\u003e\n\u003cli\u003eCCD photography: Good, when used with an additional IR-block-filter\u003c\/li\u003e\n\u003cli\u003eDSLR photography (original): Good, colour balance is near perfect\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro modified): Good, colour balance is near perfect\u003c\/li\u003e\n\u003cli\u003eDSLR photography (MC modified): Good, when used with an additional IR-block-filter\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Planets): Unsuitable\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Deep Sky): Very good, if light pollution is a big problem\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003etyp. 94% transmission at 486nm (H-beta)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003etyp. 95% transmission at 496nm (O\u003c\/span\u003e\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003etyp. 95% transmission at 501nm (O\u003c\/span\u003e\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003etyp. 94% transmission at 656nm (H alpha)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003etransmission 465nm to 530nm and above 645nm \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eFull width at half maximum 45nm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eParfocal with other Astronomik filters\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity, scratches and aging effects\u003c\/li\u003e\n\u003cli\u003eDiffraction limited, the filter will not reduce the optical performance of your telescope!\u003c\/li\u003e\n\u003cli\u003eAstronomik filters are delivered in a high-quality, long lasting, filter box\u003c\/li\u003e\n\u003cli\u003eSince 2008 we do ship filters with a completely new design. Any kind of halo or strange reflection is a matter of past\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156148162629,"sku":"8h00f0","price":130.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156173852741,"sku":"8h00f1","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS APS-C Clip","offer_id":42156173885509,"sku":"8h00in","price":180.0,"currency_code":"AUD","in_stock":true},{"title":"Cannon XT EOS APS-C Clip","offer_id":42156173918277,"sku":"8h00ks","price":195.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS XL Clip","offer_id":42156173951045,"sku":"8h00lt","price":240.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS R XL Clip","offer_id":42156173983813,"sku":"8h11g6","price":265.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS M Clip","offer_id":42156174016581,"sku":"8h00r9","price":195.0,"currency_code":"AUD","in_stock":true},{"title":"Sony alpha 7 Clip","offer_id":42156174049349,"sku":"8h00xd","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon XL Clip","offer_id":42156174082117,"sku":"8h11av","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon Z XL Clip","offer_id":42156174114885,"sku":"8h11kw","price":265.0,"currency_code":"AUD","in_stock":true},{"title":"Pentax K-1 Clip","offer_id":42156174147653,"sku":"8h11ej","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"T-Mount (M42x075)","offer_id":42156174180421,"sku":"8h00ix","price":190.0,"currency_code":"AUD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":42156174213189,"sku":"8h00bt","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"31 mm","offer_id":42156174245957,"sku":"8h00i2","price":145.0,"currency_code":"AUD","in_stock":true},{"title":"36 mm","offer_id":42156174278725,"sku":"8h00i3","price":160.0,"currency_code":"AUD","in_stock":true},{"title":"50 mm","offer_id":42156174311493,"sku":"8h00bu","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"M49","offer_id":42156174344261,"sku":"8h00vl","price":240.0,"currency_code":"AUD","in_stock":true},{"title":"M52","offer_id":42156174377029,"sku":"8h00vm","price":240.0,"currency_code":"AUD","in_stock":true},{"title":"M55","offer_id":42156174409797,"sku":"8h00vn","price":425.0,"currency_code":"AUD","in_stock":true},{"title":"M58","offer_id":42156174442565,"sku":"8h00vo","price":425.0,"currency_code":"AUD","in_stock":true},{"title":"M62","offer_id":42156174475333,"sku":"8h00vp","price":425.0,"currency_code":"AUD","in_stock":true},{"title":"M67","offer_id":42156174508101,"sku":"8h00vq","price":450.0,"currency_code":"AUD","in_stock":true},{"title":"M72","offer_id":42156174540869,"sku":"8h00vr","price":450.0,"currency_code":"AUD","in_stock":true},{"title":"M77","offer_id":42156174573637,"sku":"8h00vs","price":450.0,"currency_code":"AUD","in_stock":true},{"title":"50 x 50mm Unmounted","offer_id":42156174606405,"sku":"8h00by","price":250.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_UHC-E_1_25-Inch.jpg?v=1731641726"},{"product_id":"astronomik-oiii-visual-filter","title":"Astronomik OIII Visual Filter","description":"\u003cp\u003e\u003cstrong\u003eFrom the start, the Astronomik O\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003efilter has been very specifically designed for the visual observation of gaseous and planetary nebulae. The extremely narrow pass band of the two O\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003elines brings a substantial contrast gain to these lines even under best observation conditions. On faint super nova remnants and faint planetary nebulae the Astronomik O\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003efilter will often make the difference as to whether the object can bee seen or not!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe optimal aperture ratio for the use of the filter is 1:3.7 to 1:15 with apertures of more than 6\" (150mm). Transmission losses and chromatic distortions, which arise with other filters, occur with Astronomik O\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003efilters only when extremely bright aperture ratios of 1:3 and more come into play. The Astronomik O\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003efilters thus can expand the view of dispersed objects, generally speaking, to the whole visual field of view of the eyepiece and are not limited to only the center of the eyepiece.\u003c\/p\u003e\n\u003ch4\u003eMain use\u003c\/h4\u003e\n\u003cp\u003eSince enough light must be available to make use of the O\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003efilter it is best to use this filter with apertures of more than 6\" (150mm). Smaller instruments do not gather enough light for meaningful and satisfying astronomical work. However, please note: Many experienced Deep Sky observers, with apertures of more than 10\" (250mm), prefer using the O\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003efilter instead of the more versatile UHC filter. Due to the high optical quality of the Astronomik O\u003cspan\u003eIII\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003efilter substrate you will see the same needle-sharp stars as you would from your regular telescope.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik_oiii_trans_44391394-1147-4d4d-a6e7-cd6d25ddccd3.png?v=1734561349\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik_oiii_trans_44391394-1147-4d4d-a6e7-cd6d25ddccd3.png?v=1734561349\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156177391685,"sku":"8h0006","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156177424453,"sku":"8h0045","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"T-Mount (M42x075)","offer_id":42156177457221,"sku":"8h00bj","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":42156177489989,"sku":"8h00bk","price":350.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik_oiii_1-25-inch_800x800_f51ef92e-7985-4883-8fc7-07087bc79c3c.jpg?v=1750392265"},{"product_id":"astronomik-cls-filter","title":"Astronomik CLS Filter","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cstrong\u003eThe Astronomik CLS is a budget filter for visual observation, Black \u0026amp; White photography and CCD photographs of nebulae, galaxies and star clusters with astronomical instruments of any size. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Astronomik CLS blocks the light of the spectral lines of mercury and sodium-vapor lamps and lets the largest part of the visible light and H-alpha emissions pass. All the important emission lines, as well as the spectral region that the very well dark adapted eye can see, can pass through the filter.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik_cls_trans.png?v=1731970910\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003eMain use\u003c\/h4\u003e\n\u003cp\u003eThe filters are optimized for use with aperture ratios from 1:3 to 1:15. Transmission losses and chromatic distortions, which are problems with other filters, only appear with Astronomik filters when extremely bright aperture ratios of 1:2 and more are used. The CLS filter is suitable for use with telescopes of all aperture sizes.\u003c\/p\u003e\n\u003ch4\u003eSuitability\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (dark skies): Good, to reduce light pollution by mercury-vapour lamps (streetlight)\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban skies): Good, an UHC-E or UHC filter is more suitable\u003c\/li\u003e\n\u003cli\u003eFilm photography: Very good, colour balance is near perfect\u003c\/li\u003e\n\u003cli\u003eCCD photography: Good, when used with an additional IR-block-filter\u003c\/li\u003e\n\u003cli\u003eDSLR photography (original): Good, colour balance shifted but contrast enhanced\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro modified): Very good, colour balance is near perfect\u003c\/li\u003e\n\u003cli\u003eDSLR photography (MC modified): Good, when used with an additional IR-block-filter\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Planets): Unsuitable\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Deep Sky): Very good, if light pollution is a big problem\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e92% transmission at 486nm (H-beta)\u003c\/li\u003e\n\u003cli\u003e92% transmission at 496nm (O\u003cspan\u003eIII\u003c\/span\u003e)\u003c\/li\u003e\n\u003cli\u003e92% transmission at 501nm (O\u003cspan\u003eIII\u003c\/span\u003e)\u003c\/li\u003e\n\u003cli\u003e97% transmission at 656nm (H alpha)\u003c\/li\u003e\n\u003cli\u003epass from 450 to 540nm and beyond 650nm\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity, scratches and aging effects\u003c\/li\u003e\n\u003cli\u003eDiffraction limited, the filter will not reduce the optical performance of your telescope!\u003c\/li\u003e\n\u003cli\u003eAstronomik filters are delivered in a high-quality, long lasting, filter box\u003c\/li\u003e\n\u003cli\u003eSince 2008 we do ship filters with a completely new design. Any kind of halo or strange reflection is a matter of past\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156188237893,"sku":"8h0053","price":140.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156188270661,"sku":"8h0054","price":265.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS APS-C Clip","offer_id":42156188303429,"sku":"8h00ic","price":210.0,"currency_code":"AUD","in_stock":true},{"title":"Cannon XT EOS APS-C Clip","offer_id":42156188336197,"sku":"8h00ke","price":240.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS XL Clip","offer_id":42156188368965,"sku":"8h00lc","price":280.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS R XL Clip","offer_id":42156188401733,"sku":"8h11g9","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS M Clip","offer_id":42156188434501,"sku":"8h00r6","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"Sony alpha 7 Clip","offer_id":42156188467269,"sku":"8h00xa","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon XL Clip","offer_id":42156188500037,"sku":"8h11as","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon Z XL Clip","offer_id":42156188532805,"sku":"8h11kx","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"Pentax K-1 Clip","offer_id":42156188565573,"sku":"8h11eb","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"T-Mount (M42x075)","offer_id":42170250526789,"sku":null,"price":219.0,"currency_code":"AUD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":42156188598341,"sku":"8h00ia","price":295.0,"currency_code":"AUD","in_stock":true},{"title":"31mm","offer_id":42156188631109,"sku":"8h00fi","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"36mm","offer_id":42156188663877,"sku":"8h00fj","price":195.0,"currency_code":"AUD","in_stock":true},{"title":"50mm","offer_id":42156188696645,"sku":"8h00a3","price":265.0,"currency_code":"AUD","in_stock":true},{"title":"M49","offer_id":42156188729413,"sku":"8h00tl","price":280.0,"currency_code":"AUD","in_stock":true},{"title":"M52","offer_id":42156188762181,"sku":"8h00tm","price":295.0,"currency_code":"AUD","in_stock":true},{"title":"M55","offer_id":42156188794949,"sku":"8h00tn","price":540.0,"currency_code":"AUD","in_stock":true},{"title":"M58","offer_id":42156188827717,"sku":"8h00to","price":550.0,"currency_code":"AUD","in_stock":true},{"title":"M62","offer_id":42156188860485,"sku":"8h00tp","price":550.0,"currency_code":"AUD","in_stock":true},{"title":"M67","offer_id":42156188893253,"sku":"8h00tq","price":580.0,"currency_code":"AUD","in_stock":true},{"title":"M72","offer_id":42156188926021,"sku":"8h00h3","price":580.0,"currency_code":"AUD","in_stock":true},{"title":"M77","offer_id":42156188958789,"sku":"8h00nz","price":580.0,"currency_code":"AUD","in_stock":true},{"title":"50 x 50mm Unmounted","offer_id":42156188991557,"sku":"8h00ad","price":295.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_CLS_1_25-Inch_4.jpg?v=1731970699"},{"product_id":"astronomik-cls-ccd-filter","title":"Astronomik CLS CCD Filter","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cstrong\u003eThe Astronomik CLS CCD is suitable under light-polluted skies for DSLR Cameras, which have been remodeled for astronomical use. The filter enhances the contrast between all deep-sky objects and the background. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CLS-CCD Filter enhances the contrast between astronomical objects and the background. Due to the wider transmission curve compared to UHC filters, a greater amount of light will pass the filter. Stars will be less dimmed. This filter has been optimized to block as much spurious light as possible and simultaneously provide the best performance for 'useful' light. A good filter for DSLR-, CCD- and film b\/w-photography as well as observation of deep-sky-objects with telescopes or photo lenses of all aperture f\/2 and above.\u003c\/p\u003e\n\u003ch4\u003eMain use\u003c\/h4\u003e\n\u003cp\u003eThe filter blocks completely emission lines of artificial light sources like streetlights (e.g. sodium- and mercury-vapor) as well as the airglow. All 'important' emission lines as well as the spectral range of the night-adapted eye are beeing passed. The supplementary IR-blocking layer allows the use for DSLR- and Webcams without an integrated IR-block filter.\u003c\/p\u003e\n\u003ch4\u003eOther uses\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEasier resolution of Double Stars.\u003c\/li\u003e\n\u003cli\u003eWith the EOS-Clip model, photography with DSLR cameras is feasible even unter extreme light-polluting conditions without shifting the white balance.\u003c\/li\u003e\n\u003cli\u003eThe 1,25\" and 2\" socket models can be used for observations from light-polluted areas.\u003c\/li\u003e\n\u003cli\u003eIf you plan to create color images from emission line data, our CLS-CCD filter is a great choice for the Luminance channel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAlternatives\u003c\/h4\u003e\n\u003cp\u003eCLS: For cameras with an integrated IR-filter or for visual observation.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik_cls-ccd_trans.png?v=1731971148\"\u003e\u003c\/p\u003e\n\u003ch4\u003eSuitability\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (dark skies): Good, to reduce light pollution by mercury-vapour lamps (streetlight)\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban skies): Reasonable, an UHC-E or UHC filter is more suitable\u003c\/li\u003e\n\u003cli\u003eFilm photography: Very good, colour balance is near perfect\u003c\/li\u003e\n\u003cli\u003eCCD photography: Very good, optimized rejection of light pollution\u003c\/li\u003e\n\u003cli\u003eDSLR photography (original): Good, colour balance shifted but contrast enhanced\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro modified): Very good, colour balance is near perfect\u003c\/li\u003e\n\u003cli\u003eDSLR photography (MC modified): Very good, colour balance is near perfect\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Planets): Unsuitable\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Deep Sky): Very good, if light pollution is a big problem\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e95% transmission at 486nm (H-beta)\u003c\/li\u003e\n\u003cli\u003e95% transmission at 496nm (O\u003cspan\u003eIII\u003c\/span\u003e)\u003c\/li\u003e\n\u003cli\u003e95% transmission at 501nm (O\u003cspan\u003eIII\u003c\/span\u003e)\u003c\/li\u003e\n\u003cli\u003e97% transmission at 656nm (H-alpha)\u003c\/li\u003e\n\u003cli\u003epass from 450 to 520nm and from 640 to 690nm\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity, scratches and aging effects\u003c\/li\u003e\n\u003cli\u003eDiffraction limited, the filter will not reduce the optical performance of your telescope!\u003c\/li\u003e\n\u003cli\u003eAstronomik filters are delivered in a high-quality, long lasting, filter box\u003c\/li\u003e\n\u003cli\u003eSince 2008 we do ship filters with a completely new design. Any kind of halo or strange reflection is a matter of past\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg\u003e\u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156261277765,"sku":"8h00dp","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156261310533,"sku":"8h00dq","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS APS-C Clip","offer_id":42156261343301,"sku":"8h00dn","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"Cannon XT EOS APS-C Clip","offer_id":42156261376069,"sku":"8h00kf","price":280.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS XL Clip","offer_id":42156261408837,"sku":"8h00ld","price":365.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS R XL Clip","offer_id":42156261441605,"sku":"8h11ga","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS M Clip","offer_id":42156261474373,"sku":"8h00r7","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"Sony alpha 7 Clip","offer_id":42156261507141,"sku":"8h00xb","price":365.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon XL Clip","offer_id":42156261539909,"sku":"8h11at","price":365.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon Z XL Clip","offer_id":42156261572677,"sku":"8h11ky","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"Pentax K-1 Clip","offer_id":42156261605445,"sku":"8h11eg","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"T-Mount (M42x075)","offer_id":42156261638213,"sku":"8h00ed","price":295.0,"currency_code":"AUD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":42156261670981,"sku":"8h00ef","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"31mm","offer_id":42156261703749,"sku":"8h00fg","price":210.0,"currency_code":"AUD","in_stock":true},{"title":"36mm","offer_id":42156261736517,"sku":"8h00fh","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"50mm","offer_id":42156261769285,"sku":"8h00eh","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"M49","offer_id":42156261802053,"sku":"8h00tt","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"M52","offer_id":42156261834821,"sku":"8h00tu","price":365.0,"currency_code":"AUD","in_stock":true},{"title":"M55","offer_id":42156261867589,"sku":"8h00tv","price":740.0,"currency_code":"AUD","in_stock":true},{"title":"M58","offer_id":42156261900357,"sku":"8h00tw","price":740.0,"currency_code":"AUD","in_stock":true},{"title":"M62","offer_id":42156261933125,"sku":"8h00tx","price":765.0,"currency_code":"AUD","in_stock":true},{"title":"M67","offer_id":42156261965893,"sku":"8h00ty","price":780.0,"currency_code":"AUD","in_stock":true},{"title":"M72","offer_id":42156261998661,"sku":"8h00em","price":780.0,"currency_code":"AUD","in_stock":true},{"title":"M77","offer_id":42156262031429,"sku":"8h00u0","price":780.0,"currency_code":"AUD","in_stock":true},{"title":"27mm Unmounted","offer_id":42156262064197,"sku":"8h00l4","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"42mm Unmounted","offer_id":42156262096965,"sku":"8h11b4","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"50 x 50mm Unmounted","offer_id":42156264554565,"sku":"8h00ek","price":365.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_CLS-CCD_1_25-Inch_11.jpg?v=1731971361"},{"product_id":"astronomik-deep-sky-rgb-filter-set","title":"Astronomik Deep Sky RGB filter Set","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cstrong\u003eThe new Astronomik Deep-Sky RGB filters\u003c\/strong\u003e\u003cspan\u003e are the result of a long and detailed process of research and development. We have created the most advanced set of RGB filters for Deep-Sky imaging available today. \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe transmission curves of the three filters are designed to give you strong and vivid colors with a strong reinforcement of the most important emission lines. Data taken with the new Astronomik Deep-Sky RGB filters is easier to process into a beautiful final masterpiece.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeedback from our test-users and the first customers is really exciting. All of them reported smaller, sharper stars and this was one of our design goals, so these filters are designed to give you the best contrast and the smallest stars possible!\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eDuring the design of the Deep-Sky RGB filters we took a close look at the sensitivity curves of today’s popular CCD cameras. The result was we found a way to make one set of filters for all kind of sensors ranging from KAF- and KAI-sensors, to the chips made by Sony, meaning you can do 1:1:1 ratio RGB exposures with all sensors, with only minimal tweaking necessary during processing to achieve perfect colours in your image!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe transmission curve characteristics and coatings on the new Deep Sky RGB filters have been designed and engineered in such a way that no halos or reflections will be visible. Even with bright stars in the field of view you will be able to reveal the faintest structures in nebulas or galaxies\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eAdditional to the Deep-Sky RGB filters Astronomik now offers you\u003c\/span\u003e\u003cstrong\u003e three different Luminance filters\u003c\/strong\u003e\u003cspan\u003e. The different spectral window of each new Luminance filters is designed to tune your setup to get the sharpest image from any optical design and any camera, even with instruments with less-than-perfect colour correction. (Link einfügen)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eLike all Astronomik Filters, the new Deep-Sky RGB filters are made using an extremely durable and scratch resistant coating, deposited on the finest polished optical substrate, which is free of any striae or internal strains. All substrates are made to exactly the same thickness, so all of our filters are parfocal.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAstronomik Deep-Sky RGB Key features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum transmission of up to 95%\u003c\/li\u003e\n\u003cli\u003eUltra-Sharp, pinpoint star images\u003c\/li\u003e\n\u003cli\u003eHigh contrast\u003c\/li\u003e\n\u003cli\u003eEasy to process data for vivid colours in the final image\u003c\/li\u003e\n\u003cli\u003eOptimized spectral windows for max photon counts on the sensor\u003c\/li\u003e\n\u003cli\u003eMade on finest, opticaly polished glass\u003c\/li\u003e\n\u003cli\u003eExtremly durable, scratch resistant coating\u003c\/li\u003e\n\u003cli\u003eMFR Coating technique for a wide range of focal ratios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Deep-SkyRGB.png?v=1731709332\"\u003e\u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156288933957,"sku":"8h00pc","price":440.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156288966725,"sku":"8h00pn","price":880.0,"currency_code":"AUD","in_stock":true},{"title":"31mm","offer_id":42156289359941,"sku":"8h00py","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"36mm","offer_id":42156289392709,"sku":"8h00qj","price":595.0,"currency_code":"AUD","in_stock":true},{"title":"50mm","offer_id":42156289425477,"sku":"8h00qu","price":880.0,"currency_code":"AUD","in_stock":true},{"title":"27mm Unmounted","offer_id":42156289720389,"sku":"8h00o7","price":395.0,"currency_code":"AUD","in_stock":true},{"title":"42mm Unmounted","offer_id":42156289753157,"sku":"8h11bu","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"50 x 50mm Unmounted","offer_id":42156289785925,"sku":"8h00rf","price":1025.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_Deep-Sky-RGB_1_25-Inch.jpg?v=1731709412"},{"product_id":"astronomik-l-1-uv-ir-filter","title":"Astronomik L-1 UV-IR Block Filter","description":"\u003cp\u003eAstronomik now offers you a range of three different UV+IR blockers as Luminance filters. The different spectral window of each new Luminance filters is designed to tune your setup to get the sharpest image from any optical design and any camera.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003eThe Luminance channel is probably the most important for a great final image! You want as much signal as possible so the filter should have the highest transmission possible with a wide spectral bandpass. This combination provides the greatest sensitivity and gives you the highest photon counts on your pixels. While the high transmission level is a great aspect of the new Astronomik Luminance filters, not all optical instruments or additional optical elements like correctors, field-flatteners or reducers, have perfect colour correction so it can be the width of the spectral band pass of  the Luminance filter that can cause problems. A band pass that is too wide will allow the transmission of incompletely focused light (Chromatic aberration), making stars appear soft or bloated. In such cases image processing can become difficult, so having a slightly narrowed spectral window in your Luminance filter can reduce or eliminate this damaging effect.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eTo give you all the tools to gather the best data possible \u003c\/span\u003e\u003cstrong\u003ewe have expanded our line of Luminance filters\u003c\/strong\u003e\u003cspan\u003e: Now you can select a Luminance filter perfectly matched to the kind of telescope you use, to get the highest signal and sharpest image for the Luminance channel!\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDepending on the color correction of your scope you may use a wider spectral window for the Luminance data. The L1 filter has the widest spectral window, the L2 is about the same as our current L-Filter and the L3 is much narrower.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIf you use an optical system that is completely free of any chromatic aberration you should get an L1 filter for your setup. For general use the L2 filter is well suited to most optical systems with a corrector, flattener or reducer in the optical train while the L3 filter is designed for users of refractors with a less-than-perfect color correction and in combination with the new Deep-Sky RGB filters, the L3 filter will minimise the problem of bluish halos around stars.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe transmission curve characteristics and coatings on the new Luminance filters have been designed and engineered in such a way that no halos or reflections will be visible. Even with bright stars in the field of view you will be able to reveal the faintest structures in nebulas or galaxies.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eLike all Astronomik Filters, the new Luminance filters are made using an extremely durable and scratch resistant coating, deposited on the finest polished optical substrate, which is free of any striae or internal strains. All substrates are made to exactly the same thickness, so all of our filters are parfocal.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eAdditional note for observers working under light polluted skies:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIf your observing site suffers from light pollution you should try to use our CLS-CCD as a replacement for the Luminance filter. The transmission curve of the CLS-CCD will give you approximately the same amount of energy in all three colour channels while blocking nearly all unwanted artifical light pollution. Customers who replaced the Lx filter with the CLS-CCD are amazed by the increased quality of their data. This small change gives you the opportunity to take much deeper images from your current observing site.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/AlleLxFilter_V2.jpg?v=1731712853\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156303122501,"sku":"8h00oz","price":140.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156303155269,"sku":"8h00pk","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS APS-C Clip","offer_id":42156303188037,"sku":"8h00sj","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"Cannon XT EOS APS-C Clip","offer_id":42156303220805,"sku":"8h00mv","price":195.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS XL Clip","offer_id":42156303253573,"sku":"8h00su","price":240.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS R XL Clip","offer_id":42156303286341,"sku":"8h11ge","price":265.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS M Clip","offer_id":42156303319109,"sku":"8h00t3","price":195.0,"currency_code":"AUD","in_stock":true},{"title":"Sony alpha 7 Clip","offer_id":42156303351877,"sku":"8h00xr","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon XL Clip","offer_id":42156303384645,"sku":"8h11c3","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon Z XL Clip","offer_id":42156303417413,"sku":"8h11kz","price":265.0,"currency_code":"AUD","in_stock":true},{"title":"Pentax K-1 Clip","offer_id":42156303450181,"sku":"8h11fa","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"T-Mount (M42x075)","offer_id":42156303482949,"sku":"8h00rn","price":210.0,"currency_code":"AUD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":42156303515717,"sku":"8h00ry","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"31mm","offer_id":42156303548485,"sku":"8h00pv","price":150.0,"currency_code":"AUD","in_stock":true},{"title":"36mm","offer_id":42156303581253,"sku":"8h00qg","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"50mm","offer_id":42156303614021,"sku":"8h00qr","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"M49","offer_id":42156303646789,"sku":"8h00up","price":240.0,"currency_code":"AUD","in_stock":true},{"title":"M52","offer_id":42156303679557,"sku":"8h00uq","price":250.0,"currency_code":"AUD","in_stock":true},{"title":"M55","offer_id":42156303712325,"sku":"8h00ur","price":440.0,"currency_code":"AUD","in_stock":true},{"title":"M58","offer_id":42156303745093,"sku":"8h00us","price":440.0,"currency_code":"AUD","in_stock":true},{"title":"M62","offer_id":42156303777861,"sku":"8h00ut","price":450.0,"currency_code":"AUD","in_stock":true},{"title":"M67","offer_id":42156303810629,"sku":"8h00uu","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"M72","offer_id":42156303843397,"sku":"8h00uv","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"M77","offer_id":42156303876165,"sku":"8h00uw","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"27mm Unmounted","offer_id":42156303908933,"sku":"8h00o4","price":115.0,"currency_code":"AUD","in_stock":true},{"title":"42mm Unmounted","offer_id":42156303941701,"sku":"8h11br","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"50 x 50mm Unmounted","offer_id":42156303974469,"sku":"8h00rc","price":280.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_L-1-UV-IR-Block_1_25-Inch_73e2f4a3-2c3c-4cb8-b262-e41dbc457f2b.jpg?v=1731714012"},{"product_id":"astronomik-l-2-uv-ir-block-filter","title":"Astronomik L-2 UV-IR Block Filter","description":"\u003cp\u003eAstronomik now offers you a range of three different UV+IR blockers as Luminance filters. 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Depending on your camera, the Astronomik ProPlanet 642 BP is a great tool either for daylight IR-imaging with your digital camera, or it will reduce seeing effects and enhance contrast when used for lunar- and planetary imaging, and third it will be a very good and low-priced H-alpha Filter for getting started in Deep-Sky Astrophotography of H-alpha regions. \u003cbr\u003eDue to our skillfull developement with lot´s of tests we reached the goal to give you a filter which will do a perfect job to deliver amazing images. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDaylight IR-imaging:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003econtrasty images with a great rendition of colors\u003c\/li\u003e\n\u003cli\u003eClear \"Wood-Effect\" images\u003c\/li\u003e\n\u003cli\u003eNot Hot-Spot from longer IR!\u003c\/li\u003e\n\u003cli\u003eShort exposure times, about the same as normal VIS-imaging\u003c\/li\u003e\n\u003cli\u003eperfect choice for Infrared-Videos\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-resolution Lunar and planetary imaging:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eshort Exposure times\u003c\/li\u003e\n\u003cli\u003eeffective reduction of Seeing\u003c\/li\u003e\n\u003cli\u003eenhanced contrast\u003c\/li\u003e\n\u003cli\u003eno ghosts and best sharpness due to blocking the longer IR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDeep-Sky Astrophotography of HII regions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ebest transmission of the H-alpha line at 656nm\u003c\/li\u003e\n\u003cli\u003eabout 40nm FWHM with astro-modified DSLRs\u003c\/li\u003e\n\u003cli\u003eamazing contrast under lightpolluted skies or moonlight\u003c\/li\u003e\n\u003cli\u003elow priced filter for getting started in H-alpha imaging\u003c\/li\u003e\n\u003cli\u003eeasy focussing using camera display plus LiveView!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGuiding for Astrophotography:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003einstalling the 642BP in front of your autoguider-camera dramatically improves guiding quality, as image-motion from one frame to the next is minimized.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003emore then 96% transmission for wavelengths of 642nm to 840nm\u003c\/li\u003e\n\u003cli\u003eblocking of wavelengths between 350nm and 630nm\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity, scratches and aging effects\u003c\/li\u003e\n\u003cli\u003eDiffraction limited, the filter will not reduce the optical performance of your telescope!\u003c\/li\u003e\n\u003cli\u003eAstronomik filters are delivered in a high-quality, long lasting, filter box\u003c\/li\u003e\n\u003cli\u003eSince 2008 we do ship filters with a completely new design. 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If an EOS-Clip Filter is used in an MC modified DSLR you get tremendous results imaging the flora. The filter cuts off the part of the spectrum where Chlorophyll looks green and shows its high reflectivety in the near infrared. If trees are photographed in spring and summer under blue skies you get stunning images with white trees and clouds in front of a near black background.\u003c\/li\u003e\n\u003cli\u003eDarkens the background during twilight.\u003c\/li\u003e\n\u003cli\u003eImaging of bright planets, stars and comets by day.\u003c\/li\u003e\n\u003cli\u003eImaging of young stars in dust clouds and stellar nurseries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAlternatives\u003c\/h4\u003e\n\u003cp\u003eWhen the seeing is very bad and the instrument is 10\" (250 mm) or larger, the Astronomik ProPlanet IR 807 may be the better choice.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik-proplanet-742_trans.png?v=1734562067\"\u003e\u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156354895941,"sku":"8h00g3","price":110.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156354928709,"sku":"8h00g4","price":195.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS APS-C Clip","offer_id":42156354961477,"sku":"8h00il","price":150.0,"currency_code":"AUD","in_stock":true},{"title":"Cannon XT EOS APS-C Clip","offer_id":42156354994245,"sku":"8h00kc","price":180.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS XL Clip","offer_id":42156355027013,"sku":"8h00lo","price":210.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS R XL Clip","offer_id":42156355059781,"sku":"8h11go","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS M Clip","offer_id":42156355092549,"sku":"8h00s6","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"Sony alpha 7 Clip","offer_id":42156355125317,"sku":"8h00xk","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon XL Clip","offer_id":42156355158085,"sku":"8h11bx","price":210.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon Z XL Clip","offer_id":42156355190853,"sku":"8h11l9","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"Pentax K-1 Clip","offer_id":42156355223621,"sku":"8h11es","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"T-Mount (M42x075)","offer_id":42156355256389,"sku":"8h00iy","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":42156355289157,"sku":"8h00au","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"31mm","offer_id":42156355321925,"sku":"8h00gp","price":140.0,"currency_code":"AUD","in_stock":true},{"title":"36mm","offer_id":42156355354693,"sku":"8h00gq","price":145.0,"currency_code":"AUD","in_stock":true},{"title":"50mm","offer_id":42156355387461,"sku":"8h00g6","price":195.0,"currency_code":"AUD","in_stock":true},{"title":"M49","offer_id":42156355420229,"sku":"8h00u9","price":205.0,"currency_code":"AUD","in_stock":true},{"title":"M52","offer_id":42156355452997,"sku":"8h00ua","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"M55","offer_id":42156355485765,"sku":"8h00ub","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"M58","offer_id":42156355518533,"sku":"8h00uc","price":365.0,"currency_code":"AUD","in_stock":true},{"title":"M62","offer_id":42156355551301,"sku":"8h00ud","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"M67","offer_id":42156355584069,"sku":"8h00ue","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"M72","offer_id":42156355616837,"sku":"8h00uf","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"M77","offer_id":42156355649605,"sku":"8h00ug","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"27mm Unmounted","offer_id":42156355682373,"sku":"8h00me","price":105.0,"currency_code":"AUD","in_stock":true},{"title":"42mm Unmounted","offer_id":42156355715141,"sku":"8h11bb","price":140.0,"currency_code":"AUD","in_stock":true},{"title":"50 x 50mm Unmounted","offer_id":42156355747909,"sku":"8h00ax","price":190.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_Planet-Pro-742_1_25-Inch_4.jpg?v=1731631931"},{"product_id":"astronomik-proplanet-807-filter","title":"Astronomik ProPlanet 807 filter","description":"\u003cp\u003e\u003cb\u003eIdeal addition to the Astronomik ProPlanet IR 742 for imaging the moon and planets, with telescopes larger then 10\" (250mm) when the seeing is poor.\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis filter is an ideal complement to the ProPlanet IR 742 for use with converted DSLR cameras, CCD cameras and Webcams. The effects of seeing are distinctly reduced. It is your entry into previously unknown dimensions of photography of the moon and the planets.\u003cbr\u003e\u003cbr\u003eThe ProPlanet IR 807 only allows infrared light with wavelengths of more than 807 nm to pass. In this wavelength range the effects of seeing are significantly lower than in the visible spectrum of the human eye. This allows much sharper images than are usually obtained from your device and location. Another advantage is that the sky background of advanced dawn is dark and even allows photography of planets and moon at daylight.\u003c\/p\u003e\n\u003ch4\u003eMain use\u003c\/h4\u003e\n\u003cp\u003eThe Astronomik ProPlanet IR 807 cuts off the visible part of the spectrum and allows the light of wavelengths longer then 807nm to pass. Due to this behavior the part of the spectrum that is most sensitive to bad seeing is rejected. This approach does a big improvement to the imaging of planets and the moon. The image is more steady than the image in the visible light.\u003c\/p\u003e\n\u003ch4\u003eOther uses\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThe Astronomik ProPlanet IR 807 is designed to be an addition to the Astronomik ProPlanet IR 742, if the seeing is extremely bad and a larger telescope is used.\u003c\/li\u003e\n\u003cli\u003eFor most cameras the exposure times doubles, compared to the Astronomik ProPlanet IR 742 or imaging in visible light, if the Astronomik ProPlanet IR 807 is used.\u003c\/li\u003e\n\u003cli\u003eDarkens the background during twilight.\u003c\/li\u003e\n\u003cli\u003eImaging of bright planets, stars and comets by day.\u003c\/li\u003e\n\u003cli\u003eImaging of young stars in dust clouds and stellar nurseries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAlternatives\u003c\/h4\u003e\n\u003cp\u003eIf the seeing is not so bad or if the telescope is smaller than 10\" (250mm) we recommend the use of the Astronomik ProPlanet IR 742.\u003c\/p\u003e\n\u003ch4\u003eSuitability\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (dark skies): Unsuitable, the eye is insensitive at this spectrum\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban skies): Unsuitable, the eye is insensitive at this spectrum\u003c\/li\u003e\n\u003cli\u003eFilm photography: Unsuitable\u003c\/li\u003e\n\u003cli\u003eCCD photography: Reasonable, for special IR photography (as chlorophyll)\u003c\/li\u003e\n\u003cli\u003eDSLR photography (original): Unsuitable\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro modified): Unsuitable\u003c\/li\u003e\n\u003cli\u003eDSLR photography (MC modified): Good, for IR daylight photography, longer exposure time\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Planets): Very good, rejects problems with seeing, particularly with telescopes larger 250 mm aperture\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Deep Sky): Very good, rejects problems with seeing, particularly with telescopes larger 250 mm aperture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003emore then 97% transmission for wavelengths of 807nm to 1100nm\u003c\/li\u003e\n\u003cli\u003eblocking of wavelengths between 350nm and 790nm\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity, scratches and aging effects\u003c\/li\u003e\n\u003cli\u003eDiffraction limited, the filter will not reduce the optical performance of your telescope!\u003c\/li\u003e\n\u003cli\u003eAstronomik filters are delivered in a high-quality, long lasting, filter box\u003c\/li\u003e\n\u003cli\u003eSince 2008 we do ship filters with a completely new design. Any kind of halo or strange reflection is a matter of past\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik-proplanet-807_trans.png?v=1731645074\"\u003e\u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156356730949,"sku":"8h00g8","price":110.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156356763717,"sku":"8h00g9","price":195.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS APS-C Clip","offer_id":42156356796485,"sku":"8h00im","price":150.0,"currency_code":"AUD","in_stock":true},{"title":"Canon XT EOS APS-C Clip","offer_id":42156356829253,"sku":"8h00ko","price":180.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS XL Clip","offer_id":42156356862021,"sku":"8h00lp","price":210.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS R XL Clip","offer_id":42156356894789,"sku":"8h11gp","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS M Clip","offer_id":42156356927557,"sku":"8h00s7","price":160.0,"currency_code":"AUD","in_stock":true},{"title":"Sony alpha 7 Clip","offer_id":42156356960325,"sku":"8h00xl","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon XL Clip","offer_id":42156356993093,"sku":"8h11by","price":210.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon Z XL Clip","offer_id":42156357025861,"sku":"8h11la","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"Pentax K-1 Clip","offer_id":42156357058629,"sku":"8h11et","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"T-Mount (M42x075)","offer_id":42156357091397,"sku":"8h00iz","price":165.0,"currency_code":"AUD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":42156357124165,"sku":"8h00ay","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"31mm","offer_id":42156357156933,"sku":"8h00gr","price":140.0,"currency_code":"AUD","in_stock":true},{"title":"36mm","offer_id":42156357189701,"sku":"8h00gs","price":145.0,"currency_code":"AUD","in_stock":true},{"title":"50mm","offer_id":42156357222469,"sku":"8h00h1","price":195.0,"currency_code":"AUD","in_stock":true},{"title":"M49","offer_id":42156357255237,"sku":"8h00uh","price":205.0,"currency_code":"AUD","in_stock":true},{"title":"M52","offer_id":42156357288005,"sku":"8h00ui","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"M55","offer_id":42156357320773,"sku":"8h00uj","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"M58","offer_id":42156357353541,"sku":"8h00uk","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"M62","offer_id":42156357386309,"sku":"8h00ul","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"M67","offer_id":42156357419077,"sku":"8h00um","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"M72","offer_id":42156357451845,"sku":"8h00un","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"M77","offer_id":42156357484613,"sku":"8h00uo","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"27mm Unmounted","offer_id":42156357517381,"sku":"8h00mf","price":105.0,"currency_code":"AUD","in_stock":true},{"title":"42mm Unmounted","offer_id":42156357550149,"sku":"8h11bd","price":140.0,"currency_code":"AUD","in_stock":true},{"title":"50 x 50mm Unmounted","offer_id":42156357582917,"sku":"8h00bb","price":190.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_Planet-Pro-807_1_25-Inch_4.jpg?v=1731645242"},{"product_id":"astronomik-oiii-12nm-ccd-filter","title":"Astronomik OIII 12nm CCD Filter","description":"\u003cp\u003eAll  Astronomik Filters are perfect for modern cameras, including both CMOS and CCD based cameras, allowing you to capture the very best images possible with your instruments. Sharpness, contrast and the absence of any reflections is guaranteed.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eEach and every Astronomik filter has to pass a complex quality control process before being suitable for delivery to our customers. Each and every emission line filter is measured with a high-end Perkin-Elmer spectral-photometer to make sure that every single filter is up to the specifications published on our website.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eOn the back of each filter-box you will find a label that details the precise sensitivity and band pass measurements for that individual filter inside the box: You will see the max transmission and the recommended range of focal ratio were the filter will give you the best performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThus Astronomik O\u003cspan\u003eIII\u003c\/span\u003e CCD filter is a narrow band emission-line-filter for CCD photography. The filter lets the light of double ionized Oxygen of emission nebulae pass and blocks nearly the whole remainder of the spectrum where the CCD is sensitive. \u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe full width at half maximum (FWHM) of 12 nm is optimal suitable for common CCD cameras and allows the use of very fast optics The optimal aperture ratio for the use of the filter is 1:3 to 1:15 with apertures of more than 6\" (150mm). It should be noted that the filter has a transmission of up to 99%, which cannot be attained by stacking more narrow-band filters. A further note, which led to selecting the half width (FWHM), is the dark current of common CCD imagers. Exposures with a CCD cooled to -15°C are limited by the dark current of the CCD, even in large cities with a bright background.\u003cbr\u003e\u003cbr\u003eAnother advantage of the 12 nm filter is the better availability of guiding stars for cameras with a built-in-autoguider (SBIG). If you use a very strong filter like our H-alpha 6nm filter you often won’t find a usable guidestar.\u003cbr\u003e\u003cbr\u003eTogether with our other three Astronomik emission-line filters you can do great color images even from very light polluted places!\u003c\/p\u003e\n\u003ch4\u003eMain use\u003c\/h4\u003e\n\u003cp\u003eThe Astronomik O\u003cspan\u003eIII\u003c\/span\u003e CCD increases the contrast between objects, in this case between the O\u003cspan\u003eIII\u003c\/span\u003e emission line and the skyglow background. Our Astronomik O\u003cspan\u003eIII\u003c\/span\u003e CCD completely suppresses the emission lines of artificial lighting (mercury (Hg) and sodium (Na)) and skyglow. Transmission losses and chromatic distortions, which arise with other filters, only occur with Astronomik filters when extremely bright aperture ratios of 1:2 and more come into play. The filter has a built-in IR-blocker up to 1150nm. You don’t need an additional IR-blocker with this filter.\u003c\/p\u003e\n\u003ch4\u003eOther uses\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWhen using the Astronomik O\u003cspan\u003eIII\u003c\/span\u003e CCD filter togther with the H-alpha, O\u003cspan\u003eIII\u003c\/span\u003e CCD and the S\u003cspan\u003eII\u003c\/span\u003e CCD filters you can obtain three-color images of emission line objects (gas nebulae) from locations with very strong light pollution. To do so, you would take an image in three different wavelengths, select each one as a color-channel in Photoshop and paste them together as one single color image.\u003c\/li\u003e\n\u003cli\u003eIf you plan to create color images from emission line data, our CLS CCD filter is a great choice for the Luminance channel\u003c\/li\u003e\n\u003cli\u003eThe O\u003cspan\u003eIII\u003c\/span\u003e CCD is also great for visual observation. If you plan to get filters for visual observation and for astrophotography get the CCD filter: You may use this filter visual as well as in front of you camera. The built-in IR-blocker doesn’t disturb visual observation but you need an additional IR-blocker if you want to use the visual filter with your camera.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik-oiii-ccd_trans.png?v=1731978903\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eSuitability\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (dark skies): Very good, huge contrast enhancement at O III-emission nebulas\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban skies): Very good, huge contrast enhancement at O III-emission nebulas\u003c\/li\u003e\n\u003cli\u003eFilm photography: It depends, very long exposure time\u003c\/li\u003e\n\u003cli\u003eCCD photography: Very good, huge contrast enhancement at O III-emission nebulas\u003c\/li\u003e\n\u003cli\u003eDSLR photography (original): Very good, huge contrast enhancement at O III-emission nebulas\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro modified): Very good, huge contrast enhancement at O III-emission nebulas\u003c\/li\u003e\n\u003cli\u003eDSLR photography (MC modified): Very good, huge contrast enhancement at O III-emission nebulas\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Planets): Unsuitable\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Deep Sky): Reasonable, if light pollution is a big problem and O\u003cspan\u003eIII\u003c\/span\u003e Objects are beeing observed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003etyp. 95% transmission at 496nm (O\u003cspan\u003eIII\u003c\/span\u003e)\u003c\/li\u003e\n\u003cli\u003etyp. 95% transmission at 501nm (O\u003cspan\u003eIII\u003c\/span\u003e)\u003c\/li\u003e\n\u003cli\u003efull width at half maximum 12nm\u003c\/li\u003e\n\u003cli\u003etransmission from 494nm to 506nm\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity, scratches and aging effects\u003c\/li\u003e\n\u003cli\u003eDiffraction limited, the filter will not reduce the optical performance of your telescope!\u003c\/li\u003e\n\u003cli\u003eAstronomik filters are delivered in a high-quality, long lasting, filter box\u003c\/li\u003e\n\u003cli\u003eSince 2008 we do ship filters with a completely new design. Any kind of halo or strange reflection is a matter of past\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156362924101,"sku":"8h00c9","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156362956869,"sku":"8h00d0","price":450.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS APS-C Clip","offer_id":42156362989637,"sku":"8h00ii","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"Cannon XT EOS APS-C Clip","offer_id":42156363022405,"sku":"8h00kn","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS XL Clip","offer_id":42156363055173,"sku":"8h00lm","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS R XL Clip","offer_id":42156363087941,"sku":"8h11gh","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS M Clip","offer_id":42156363120709,"sku":"8h00s4","price":325.0,"currency_code":"AUD","in_stock":true},{"title":"Sony alpha 7 Clip","offer_id":42156363153477,"sku":"8h00xi","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon XL Clip","offer_id":42156363186245,"sku":"8h11ay","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon Z XL Clip","offer_id":42156363219013,"sku":"8h11l2","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"Pentax K-1 Clip","offer_id":42156363251781,"sku":"8h11en","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"T-Mount (M42x075)","offer_id":42156363284549,"sku":"8h00bl","price":410.0,"currency_code":"AUD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":42156363317317,"sku":"8h00bm","price":495.0,"currency_code":"AUD","in_stock":true},{"title":"31mm","offer_id":42156363350085,"sku":"8h00gj","price":265.0,"currency_code":"AUD","in_stock":true},{"title":"36mm","offer_id":42156363382853,"sku":"8h00gk","price":295.0,"currency_code":"AUD","in_stock":true},{"title":"50mm","offer_id":42156363415621,"sku":"8h00d4","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"M49","offer_id":42156363448389,"sku":"8h11jq","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"M52","offer_id":42156363481157,"sku":"8h11a9","price":495.0,"currency_code":"AUD","in_stock":true},{"title":"27mm Unmounted","offer_id":42156363710533,"sku":"8h00mj","price":210.0,"currency_code":"AUD","in_stock":true},{"title":"42mm Unmounted","offer_id":42156363743301,"sku":"8h11bh","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"50 x 50mm Unmounted","offer_id":42156363776069,"sku":"8h00hn","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 1.25 inch (M28\/5)","offer_id":42156375507013,"sku":"8h11hy","price":280.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 2 inch (M28\/5)","offer_id":42156375539781,"sku":"8h11hz","price":595.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Canon EOS APS-C Clip","offer_id":42156375572549,"sku":"8h11hx","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Canon EOS XL Clip","offer_id":42156375605317,"sku":"8h11i1","price":640.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Canon EOS R XL Clip","offer_id":42156375638085,"sku":"8h11i0","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Sony Alpha 7 Clip","offer_id":42156375670853,"sku":"8h11i3","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Nikon XL","offer_id":42156375703621,"sku":"8h11i2","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Nikon Z XL","offer_id":42156375736389,"sku":"8h11lh","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 31mm","offer_id":42156375769157,"sku":"8h11hu","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 36mm","offer_id":42156375801925,"sku":"8h11hv","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 50mm","offer_id":42156375834693,"sku":"8h11hw","price":595.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR M52","offer_id":42156375867461,"sku":"8h11ne","price":595.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 27mm Unmounted","offer_id":42156375900229,"sku":"8h11n6","price":265.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_OIII-CCD-12nm_1_25-Inch.jpg?v=1731979347"},{"product_id":"astronomik-h-alpha-12nm-ccd-filter-copy","title":"Astronomik H-alpha 12nm CCD Filter","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cstrong\u003eThe Astronomik H-alpha filter is a narrow band filter for CCD photography. The filter lets the H-alpha light of emission nebulae pass and blocks nearly the whole remainder of the spectrum where the CCD is sensitive. \u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe full width at half-maximum (FWHM) of 12nm is optimized for the use with common CCD cameras and allows the use of very fast optics. It should be noted that the filter has a transmission of up to 99%.Another advantage of the 12nm filters is the availability of guiding stars for cameras with a built-in-autoguider (SBIG). If you use a very strong filter like our 6nm filter you often won’t find a usable guidestar.The range of application extends from 1:2.8 to 1:15. Transmission losses and chromatic distortions, which arise with other filters, only occur with Astronomik filters when extremely bright aperture ratios of 1:2 and more come into play.\u003c\/p\u003e\n\u003ch4\u003eMain use\u003c\/h4\u003e\n\u003cp\u003eThe Astronomik H-alpha-CCD (12nm version) increases the contrast between objects, in this case between the H-alpha emission line and the skyglow background. Our Astronomik H-alpha-CCD (12nm version) completely suppresses the emission lines of artificial lighting (mercury (Hg) and sodium (Na)) and skyglow.\u003c\/p\u003e\n\u003ch4\u003eOther uses\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWhen using the OIII CCD and the SII-CCD filters you can obtain three-color images of emission line objects (gas nebulae) from locations with very strong light pollution. To do so, you would take an image in three different wavelengths, select each one as a color-channel in Photoshop and paste them together as a color image.\u003c\/li\u003e\n\u003cli\u003eThe Astronomik H-Alpha filters may NOT be used for solar observation.\u003c\/li\u003e\n\u003cli\u003eIf you plan to create color images from emission line data, our CLS-CCD filter is a great choice for the Luminance channel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik-ha13-ccd_trans.png?v=1731973235\"\u003e\u003c\/h4\u003e\n\u003ch4\u003eSuitability\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (dark skies): Unsuitable\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban skies): Unsuitable\u003c\/li\u003e\n\u003cli\u003eFilm photography: Reasonable, but very long exposure times\u003c\/li\u003e\n\u003cli\u003eCCD photography: Very good, huge contrast enhancement at H II-emission nebulas\u003c\/li\u003e\n\u003cli\u003eDSLR photography (original): Good, reduced sensitivity in the H-alpha band\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro modified): Very good, huge contrast enhancement at H II-emission nebulas\u003c\/li\u003e\n\u003cli\u003eDSLR photography (MC modified): Very good, huge contrast enhancement at H II-emission nebulas\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Planets): Unsuitable\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Deep Sky): Good, good contrast enhancement with bright objects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003etyp. transmission of more then 95% at the H-alpha line (656nm)\u003c\/li\u003e\n\u003cli\u003eComplete blocking from all disturbing wavelengths in the infrared\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity, scratches and aging effects\u003c\/li\u003e\n\u003cli\u003eDiffraction limited, the filter will not reduce the optical performance of your telescope!\u003c\/li\u003e\n\u003cli\u003eAstronomik filters are delivered in a high-quality, long lasting, filter box\u003c\/li\u003e\n\u003cli\u003eSince 2008 we do ship filters with a completely new design. Any kind of halo or strange reflection is a matter of past\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156413943877,"sku":"8h0050","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156413976645,"sku":"8h0051","price":450.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS APS-C Clip","offer_id":42156414009413,"sku":"8h00ih","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"Cannon XT EOS APS-C Clip","offer_id":42156414042181,"sku":"8h00kh","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS XL Clip","offer_id":42156414074949,"sku":"8h00lf","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS R XL Clip","offer_id":42156414107717,"sku":"8h11gj","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS M 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XL","offer_id":42156414828613,"sku":"8h11hs","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Nikon Z XL","offer_id":42156414861381,"sku":"8h11lg","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 31mm","offer_id":42156414894149,"sku":"8h11hk","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 36mm","offer_id":42156414926917,"sku":"8h11hl","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 50mm","offer_id":42156414959685,"sku":"8h11hm","price":595.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR M52","offer_id":42156414992453,"sku":"8h11nc","price":595.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 27mm Unmounted","offer_id":42156415025221,"sku":"8h11n7","price":265.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_H-alpha-CCD-12nm_1_25-Inch.jpg?v=1731978532"},{"product_id":"astronomik-sii-12nm-ccd-filter","title":"Astronomik SII 12nm CCD Filter","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cstrong\u003eThe Astronomik S\u003cspan\u003eII\u003c\/span\u003e-CCD filter is a narrow-band-filter for CCD photography.The filter lets the light of the ionized sulfur (S\u003cspan\u003eII\u003c\/span\u003e) pass, and blocks nearly the whole remainder of the visual spectrum as well as IR, in which the CCD is sensitive.\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe full width at half maximum (FWHM) of 12nm is optimal suitable for common CCD cameras and allows the use of very fast optics. The range of application extends from 1:2.8 to 1:15. Transmission losses and chromatic distortions, which arise with other filters, only occur with Astronomik filters when extremely bright aperture ratios of 1:2 and more come into play. It should be noted, that the filter has a transmission of up to 99%.\u003cbr\u003e\u003cbr\u003eAnother advantage of the 12nm filters is the good availability of guiding stars for cameras with a built-in-autoguider (SBIG). If you use a very strong filter like our 6nm filter you often won't find a usable guidestar.\u003cbr\u003e\u003cbr\u003eThe Astronomik S\u003cspan\u003eII\u003c\/span\u003e CCD filter increases the contrast between objects, in this case between those with S\u003cspan\u003eII\u003c\/span\u003e emission lines and the skyglow background. Also, our Astronomik S\u003cspan\u003eII\u003c\/span\u003e-CCD filter completely suppresses the emission lines of artificial lighting (mercury (Hg) and sodium (Na)) and skyglow.\u003c\/p\u003e\n\u003ch4\u003eMain use\u003c\/h4\u003e\n\u003cp\u003eThe Astronomik S\u003cspan\u003eII\u003c\/span\u003e CCD increases the contrast between objects, in this case between the S\u003cspan\u003eII\u003c\/span\u003e emission line and the skyglow background. Our Astronomik S\u003cspan\u003eII\u003c\/span\u003e CCD completely suppresses the emission lines of artificial lighting (mercury (Hg) and sodium (Na)) and skyglow. Due to the high optical quality of the Astronomik H-alpha-CCD substrate you will see the same needle-sharp stars as you would from your regular telescope.\u003c\/p\u003e\n\u003ch4\u003eOther uses\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUsing the new H-alpha-CCD and the new S\u003cspan\u003eII\u003c\/span\u003e-CCD filters you can obtain three-color images of emission line objects (gas nebulae) from locations with very strong light pollution. To do so, you would take an image in three different wavelengths, select each one as a color-channel in Photoshop and paste them together as one single color image.\u003c\/li\u003e\n\u003cli\u003eIf you plan to create color images from emission line data, our CLS-CCD filter is a great choice for the Luminance channel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/astronomik-sii-ccd_trans.png?v=1731979788\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eSuitability\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVisual observation (dark skies): Unsuitable\u003c\/li\u003e\n\u003cli\u003eVisual observation (urban skies): Unsuitable\u003c\/li\u003e\n\u003cli\u003eFilm photography: It depends, but very long exposure times\u003c\/li\u003e\n\u003cli\u003eCCD photography: Very good, huge contrast enhancement at S II-emission nebulas\u003c\/li\u003e\n\u003cli\u003eDSLR photography (original): Unsuitable\u003c\/li\u003e\n\u003cli\u003eDSLR photography (astro modified): Very good, huge contrast enhancement at S II-emission nebulas\u003c\/li\u003e\n\u003cli\u003eDSLR photography (MC modified): Very good, huge contrast enhancement at S II-emission nebulas\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Planets): Unsuitable\u003c\/li\u003e\n\u003cli\u003eWebcam \/ Video (Deep Sky): Unsuitable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Data\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003etyp. transmission of 95% at both SII lines (671,7nm und 673,0nm)\u003c\/li\u003e\n\u003cli\u003eComplete blocking of all disturbing wavelength ranges in the infrared\u003c\/li\u003e\n\u003cli\u003eParfocal with other Astronomik filters\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 1mm\u003c\/li\u003e\n\u003cli\u003eCompletely resistant against high humidity, scratches and aging effects\u003c\/li\u003e\n\u003cli\u003eDiffraction limited, the filter will not reduce the optical performance of your telescope!\u003c\/li\u003e\n\u003cli\u003eAstronomik filters are delivered in a high-quality, long lasting, filter box\u003c\/li\u003e\n\u003cli\u003eSince 2008 we do ship filters with a completely new design. Any kind of halo or strange reflection is a matter of past\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Astronomik","offers":[{"title":"1.25 inch (M28\/5)","offer_id":42156417155141,"sku":"8h00d5","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch (M48)","offer_id":42156417187909,"sku":"8h00d6","price":450.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS APS-C Clip","offer_id":42156417220677,"sku":"8h00ik","price":310.0,"currency_code":"AUD","in_stock":true},{"title":"Cannon XT EOS APS-C Clip","offer_id":42156417253445,"sku":"8h00kq","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS XL Clip","offer_id":42156417286213,"sku":"8h00lr","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS R XL Clip","offer_id":42156417318981,"sku":"8h11gl","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"Canon EOS M Clip","offer_id":42156417351749,"sku":"8h00s5","price":325.0,"currency_code":"AUD","in_stock":true},{"title":"Sony alpha 7 Clip","offer_id":42156417384517,"sku":"8h00xj","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon XL Clip","offer_id":42156417417285,"sku":"8h11az","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"Nikon Z XL Clip","offer_id":42156417450053,"sku":"8h11l6","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"Pentax K-1 Clip","offer_id":42156417482821,"sku":"8h11ep","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"T-Mount (M42x075)","offer_id":42156417515589,"sku":"8h00bq","price":410.0,"currency_code":"AUD","in_stock":true},{"title":"SC Rear Cell (2\" \/ 24TPI)","offer_id":42156417548357,"sku":"8h00br","price":495.0,"currency_code":"AUD","in_stock":true},{"title":"31mm","offer_id":42156417581125,"sku":"8h00gw","price":265.0,"currency_code":"AUD","in_stock":true},{"title":"36mm","offer_id":42156417613893,"sku":"8h00gx","price":295.0,"currency_code":"AUD","in_stock":true},{"title":"50mm","offer_id":42156417646661,"sku":"8h00e0","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"M49","offer_id":42156417679429,"sku":"8h11ju","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"M52","offer_id":42156417712197,"sku":"8h11aa","price":495.0,"currency_code":"AUD","in_stock":true},{"title":"27mm Unmounted","offer_id":42156417744965,"sku":"8h00mi","price":210.0,"currency_code":"AUD","in_stock":true},{"title":"42mm Unmounted","offer_id":42156417777733,"sku":"8h11bg","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"50 x 50mm Unmounted","offer_id":42156417810501,"sku":"8h00ho","price":510.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 1.25 inch (M28\/5)","offer_id":42156417843269,"sku":"8h11i8","price":280.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 2 inch (M28\/5)","offer_id":42156417876037,"sku":"8h11i9","price":595.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Canon EOS APS-C Clip","offer_id":42156417908805,"sku":"8h11i7","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Canon EOS XL Clip","offer_id":42156417941573,"sku":"8h11ib","price":625.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Canon EOS R XL Clip","offer_id":42156417974341,"sku":"8h11ia","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Sony Alpha 7 Clip","offer_id":42156418007109,"sku":"8h11id","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Nikon XL","offer_id":42156418039877,"sku":"8h11ic","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR Nikon Z XL","offer_id":42156418072645,"sku":"8h11li","price":665.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 31mm","offer_id":42156418105413,"sku":"8h11i4","price":350.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 36mm","offer_id":42156418138181,"sku":"8h11i5","price":380.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 50mm","offer_id":42156418170949,"sku":"8h11i6","price":595.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR M52","offer_id":42156418203717,"sku":"8h11nd","price":595.0,"currency_code":"AUD","in_stock":true},{"title":"MaxFR 27mm Unmounted","offer_id":42156418236485,"sku":"8h11n5","price":265.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Astronomik_SII-CCD-12nm_1_25-Inch.jpg?v=1731979927"},{"product_id":"astronomik-dark-filter","title":"Astronomik Dark Filter","description":"\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDark Filter 1.25 inch\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur 1,25\" (M28,5) filters fit perfectly in all 1,25\" (M28,5) filter wheels of the brands ZWO, QHY, QSI, Starlight Xpress, SBIG, Moravian and Atik.\u003c\/p\u003e\n\u003cp\u003eThe orientation of the filter in the filter wheel does not matter. It does not change the optical performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDark Filter 2 inch\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur 2\" (M48) filters fit perfectly in all 2\" (M48) filter wheels of the brands ZWO, QHY, QSI, Starlight Xpress, SBIG, Moravian and Atik.\u003c\/p\u003e\n\u003cp\u003eThe orientation of the filter in the filter wheel does not matter. It does not change the optical performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDark filter 31mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur 31mm filters fit perfectly in all 31mm filter wheels of the brands ZWO, QHY, QSI, Starlight Xpress, SBIG, Moravian and Atik. The design with protective ring and blackened filter edges prevents stray light, the filters are mechanically protected and easier to handle.\u003c\/p\u003e\n\u003cp\u003eThe orientation of the filter in the filter wheel does not matter. It does not change the optical performance.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDark filter 36mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur 36mm filters fit perfectly in all 36mm filter wheels of the brands ZWO, QHY, QSI, Starlight Xpress, SBIG, Moravian and Atik. The design with protective ring and blackened filter edges prevents stray light, the filters are mechanically protected and easier to handle.\u003c\/p\u003e\n\u003cp\u003eThe orientation of the filter in the filter wheel does not matter. 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Whether you're conducting photometric studies or enhancing your imaging setup, this filter is an indispensable tool for achieving accurate and high-quality results in ultraviolet astronomy.\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25 inch MOUNTED","offer_id":42161178476613,"sku":"CT-27050-1.25M","price":520.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch MOUNTED","offer_id":42161178509381,"sku":"CT-27050-2M","price":1260.0,"currency_code":"AUD","in_stock":true},{"title":"31mm UNMOUNTED","offer_id":42161178542149,"sku":"CT-27050-31D","price":520.0,"currency_code":"AUD","in_stock":true},{"title":"36mm UNMOUNTED","offer_id":42161178574917,"sku":"CT-27050-36D","price":640.0,"currency_code":"AUD","in_stock":true},{"title":"50mm UNMOUNTED","offer_id":42161178607685,"sku":"CT-27050-50D","price":1170.0,"currency_code":"AUD","in_stock":true},{"title":"50x50 mm UNMOUNTED","offer_id":42161178640453,"sku":"CT-27050-50X50","price":1300.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/Chroma_Front.jpg?v=1762487244"},{"product_id":"chroma-b-bessell-filter","title":"CHROMA TECHNOLOGY B-Bessell Filter","description":"\u003cp\u003eThe Chroma Technology B-Bessell Filter is a precision-engineered astronomical filter tailored for photometric applications and astrophotography. 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Its ultra-narrow 3nm bandwidth isolates the H-alpha emission line at 656.3nm with exceptional precision, effectively eliminating light pollution and other unwanted wavelengths, even in challenging imaging conditions.\u003c\/p\u003e\n\u003cp\u003eEngineered with state-of-the-art coatings and superior optical quality, this filter minimizes halos, reflections, and ghosting, providing crisp, artifact-free images. Ideal for use with fast optical systems, the Chroma 3nm filter excels in revealing the intricate structures of emission nebulae and other faint targets. 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The FWHM of L-Para is 10nm for OIII (500.7nm) and H-Alpha (656.3nm) respectively. The transmittance of nebulae emission lines at are both greater than 85% in system with focal ratios of F2 and above. It effectively filters out mercury lamp, sodium lamp, and LED light pollution emission lines. At the same time, it has excellent contrast and anti-halo characteristics, allowing you to capture detailed and vivid nebula images. L-Para is suitable for both normal optical systems and fast optical systems, such as RASA and Hyperstar systems. 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