{"title":"LRGB Filters","description":"","products":[{"product_id":"zwo-lrgb-filter-set-new","title":"ZWO LRGB Filter Set 1.25","description":"\u003cp\u003eThe new  ZWO LRGB Filters  are designed to approximately equalize the flux of ASI1600 mono sensor\u003c\/p\u003e\n\u003cp\u003eBetter transmission, Better coating,  Better color separation\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Parameter:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eName: ZWO New LRGB Filters Optimized  for ASI1600(4 filters)\u003c\/p\u003e\n\u003cp\u003eSize: 1.25″\u003c\/p\u003e\n\u003cp\u003eThickness: 5.5mm+2.5mm(thread)\u003c\/p\u003e\n\u003cp\u003eThread: M28.5*0.6\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ethe RGB color combine weights will be approximately 1:1:1\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFine-optically polished to ensure accurate 1\/4 wavefront\u003c\/li\u003e\n\u003cli\u003emore than 92% transmission at passband\u003c\/li\u003e\n\u003cli\u003eInfrared wavelength 700-1100nm cut-off\u003c\/li\u003e\n\u003cli\u003ePrecision off-band blocking\u003c\/li\u003e\n\u003cli\u003eMulti-layers anti-reflection coating\u003c\/li\u003e\n\u003cli\u003eSmall spectral “gap” to minimize effect of light pollution\u003c\/li\u003e\n\u003cli\u003eMore parfocal – thickness 1.9+\/-0.03 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ehere is the the transmission curve\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/RGBL-ASI1600.jpg\"\u003e\u003cimg class=\"alignnone size-full wp-image-3734\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/RGBL-ASI1600.jpg\" alt=\"RGBL ASI1600\" width=\"958\" height=\"686\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":42045238804549,"sku":"LRGB Set 1.25inch NEW","price":224.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/zwo-lrgb-filter-set-987862.jpg?v=1731541428"},{"product_id":"zwo-lrgb-36mm-filter-set-2","title":"ZWO LRGB 36mm Filter Set","description":"\u003cp\u003eThe ZWO LRGB  36mm filter set has better transmission, better coating,  better color separation\u003c\/p\u003e\n\u003cp\u003ethe RGB color combine weights will be approximately 1:1:1\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFine-optically polished to ensure accurate 1\/4 wavefront\u003c\/li\u003e\n\u003cli\u003emore than 92% transmission at passband\u003c\/li\u003e\n\u003cli\u003eInfrared wavelength 700-1100nm cut-off\u003c\/li\u003e\n\u003cli\u003ePrecision off-band blocking\u003c\/li\u003e\n\u003cli\u003eMulti-layers anti-reflection coating\u003c\/li\u003e\n\u003cli\u003eSmall spectral “gap” to minimize effect of light pollution\u003c\/li\u003e\n\u003cli\u003eMore parfocal – thickness  2mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Parameter:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eName: ZWO LRGB  36mm filter set (4 filters)\u003c\/p\u003e\n\u003cp\u003eSize: 36mm\u003c\/p\u003e\n\u003cp\u003eThickness: 2mm\u003c\/p\u003e\n\u003ch6\u003e\u003cstrong\u003eTransmission Curve\u003c\/strong\u003e\u003c\/h6\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/ZWO_RGBL_Narrow_curve.jpg\"\u003e\u003cimg class=\"alignnone wp-image-5615\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/ZWO_RGBL_Narrow_curve.jpg\" alt=\"ZWO_RGBL_Narrow_curve\" width=\"588\" height=\"421\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":42045239001157,"sku":"LRGB Set 36mm","price":299.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/zwo-lrgb-36mm-filter-set-794328.jpg?v=1731541428"},{"product_id":"zwo-lrgb-2in","title":"ZWO LRGB 2in","description":"\u003cp\u003eThe new  ZWO LRGB 2in Filters has good performance in transmission, the high quality coatings offer good colour separation.\u003c\/p\u003e\n\u003cp\u003eFits the NEW ZWO EFW-5x2 and ZWO-EFW-7x2\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Parameter:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eName: ZWO LRGB 2in Filters  (4 filters)\u003c\/p\u003e\n\u003cp\u003eSize: 2″\u003c\/p\u003e\n\u003cp\u003eThickness: 5 mm+2.5mm(thread)\u003c\/p\u003e\n\u003cp\u003eThread: M48*0.75\u003c\/p\u003e\n\u003cp\u003eThickness: 1.85mm\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"size-full wp-image-62832 alignleft\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/ZWO-LRGB2-Schematic.jpg\" alt=\"\" width=\"500\" height=\"278\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ethe RGB color combine weights will be approximately 1:1:1\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFine-optically polished to ensure accurate 1\/4 wavefront\u003c\/li\u003e\n\u003cli\u003emore than 92% transmission at passband\u003c\/li\u003e\n\u003cli\u003eInfrared wavelength 700-1100nm cut-off\u003c\/li\u003e\n\u003cli\u003ePrecision off-band blocking\u003c\/li\u003e\n\u003cli\u003eMulti-layers anti-reflection coating\u003c\/li\u003e\n\u003cli\u003eSmall spectral “gap” to minimize effect of light pollution\u003c\/li\u003e\n\u003cli\u003eMore parfocal – thickness 1.9+\/-0.03 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ehere is the the transmission curve\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"size-full wp-image-62831 alignleft\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/LRGB-Graph.jpg\" alt=\"\" width=\"600\" height=\"430\"\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":42045240672325,"sku":"ZWO-LRGB2","price":479.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/zwo-lrgb-2in-786396.jpg?v=1731541428"},{"product_id":"astronomik-l-rgb-filterset-1-25in-e285-type-2c","title":"Astronomik L-RGB Filterset 1.25in (E28,5) Type 2c","description":"\u003cp\u003eThe transmission properties of the L-RGB  Filterset 1.25in Type 2c filters are optimized for CCD astrophotography. The set allows taking images in correct colours for all types of objects. Where other brands make strange compromises, we do the best colour reproduction possible. Both stars as well as objects that emit only in spectral lines, are reproduced in their true colors. You get CCD images with perfect colours, as if the objects where bright enough to be seen with photopic vision. This feature is the main difference between Astronomik filters an those of other manufacturers.\u003c\/p\u003e\n\u003cp\u003eThe following aspects have been most important for the design of our filters:\u003c\/p\u003e\n\u003cp\u003e- simple image processing for the user\u003c\/p\u003e\n\u003cp\u003e- highest transmission (nearly 100%) for short exposure times\u003c\/p\u003e\n\u003cp\u003e- adjusted transmissions of the individual filters for optimal colour reproduction\u003c\/p\u003e\n\u003cp\u003e- the use of industry standards\u003c\/p\u003e\n\u003cp\u003eAstronomik doesn't stop thinking at the step of taking the picture. More important a tool should be given to the astrophotographers that offers a simple and elegant editing process. To maintain the colour, we calculated our filterset for the sRGB color space, that is used as an industry standard from most manufacturers of monitors, printers and imaging software. As a user, you do not need to spend time learning about colourimetry and colour spaces. We have solved the special problems of astrophotography for you.\u003c\/p\u003e\n\u003cp\u003eDue to the high-precision machining of the carrier substrate, our filters are parfocal with wedge errors below all usual margins. In order not to be the bottleneck in a high-quality optical system Astronomik filters are of course diffraction limited. Issues concerning focal distances as well as the exact location of the images of each colour image are not a problem at all!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMain use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe L-RGB filter set divides the spectrum into its components red, green, blue and luminance. Thus colour separation can be achieved with pure b\/w CCD sensors. The separation corresponds to the colour sensitivity of the human eye according to DIN 5032. By using the sRGB color space it is possible to maintain the color of the image throughout the entire image processing and output. With an Astronomik L-RGB filter set and your camera you create ideal raw material for image processing in the sRGB color space.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSKU: 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 Filter Set","description":"\u003cp\u003eThe ATIK LRGB 36mm set consists of Luminance, Red, Green and blue filters, that have been designed for CCD cameras to image deep sky objects, galaxies and stars in their natural colour. Take advantage of our special offer.\u003cstrong\u003e Get 50% off any filter set (or both filter sets), when you buy any Atik mono camera \u003c\/strong\u003e(with the exception of the Atik GP).\u003c\/p\u003e\n\u003cp\u003eIf a natural colour representation is what you want from you deep-sky imaging, an LRGB filter set should be your first choice. With OIII emission overlapping on the blue and green filters to allow high efficiency and natural colour imaging of all deep-sky objects. The gap between green and red filters serves to block out the light pollution line at 589nm and improves the colour of your images.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eATIK LRGB 36mm Set Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTransmission: Average 95%\u003cbr\u003e\nSize: 36mm\u003cbr\u003e\nCoating Wavelength: 300-1050nm\u003cbr\u003e\nTransmitted Wavefront RMS: λ\/4\u003cbr\u003e\nParallelism (arcsec): 30s\u003c\/p\u003e\n\u003ctable class=\" alignleft\" style=\"height: 124px;\" border=\"0\" width=\"728\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission in Band\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission out of band\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLuminance\u003c\/td\u003e\n\u003ctd\u003e410-680nm\u003c\/td\u003e\n\u003ctd\u003eAverage \u0026gt;95%, Minimum \u0026gt;90%\u003c\/td\u003e\n\u003ctd\u003eMaximum \u0026lt;1% Average \u0026lt;0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003ctd\u003e600-680nm\u003c\/td\u003e\n\u003ctd\u003eAverage \u0026gt;95%, Minimum \u0026gt;90%\u003c\/td\u003e\n\u003ctd\u003eMaximum \u0026lt;1% Average \u0026lt;0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGreen\u003c\/td\u003e\n\u003ctd\u003e500-550nm\u003c\/td\u003e\n\u003ctd\u003eAverage \u0026gt;95%, Minimum \u0026gt;90%\u003c\/td\u003e\n\u003ctd\u003eMaximum \u0026lt;1% Average \u0026lt;0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003ctd\u003e410-500nm\u003c\/td\u003e\n\u003ctd\u003eAverage \u0026gt;95%, Minimum \u0026gt;90%\u003c\/td\u003e\n\u003ctd\u003eMaximum \u0026lt;1% Average \u0026lt;0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSKU: 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":"atik-lrgb-2-filter-kit","title":"Atik LRGB 2\" Filter Kit","description":"\u003cp\u003eThe ATIK LRGB 2\" filter set consists of Luminance, Red, Green and blue filters, that have been designed for CCD cameras to image deep sky objects, galaxies and stars in their natural colour. Take advantage of our special offer.\u003cstrong\u003e Get 50% off any filter set (or both filter sets), when you buy any Atik mono camera \u003c\/strong\u003e(with the exception of the Atik GP).\u003c\/p\u003e\n\u003cp\u003eIf a natural colour representation is what you want from you deep-sky imaging, an LRGB filter set should be your first choice. With OIII emission overlapping on the blue and green filters to allow high efficiency and natural colour imaging of all deep-sky objects. The gap between green and red filters serves to block out the light pollution line at 589nm and improves the colour of your images.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eATIK LRGB 2\" Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTransmission: Average 95%\u003cbr\u003e\nSize: 2”\u003cbr\u003e\nCoating Wavelength: 300-1050nm\u003cbr\u003e\nTransmitted Wavefront RMS: λ\/4\u003cbr\u003e\nParallelism (arcsec): 30s\u003c\/p\u003e\n\u003ctable class=\" alignleft\" style=\"height: 124px;\" border=\"0\" width=\"659\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission in Band\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission out of band\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLuminance\u003c\/td\u003e\n\u003ctd\u003e410-680nm\u003c\/td\u003e\n\u003ctd\u003eAverage \u0026gt;95%, Minimum \u0026gt;90%\u003c\/td\u003e\n\u003ctd\u003eMaximum \u0026lt;1% Average \u0026lt;0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003ctd\u003e600-680nm\u003c\/td\u003e\n\u003ctd\u003eAverage \u0026gt;95%, Minimum \u0026gt;90%\u003c\/td\u003e\n\u003ctd\u003eMaximum \u0026lt;1% Average \u0026lt;0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGreen\u003c\/td\u003e\n\u003ctd\u003e500-550nm\u003c\/td\u003e\n\u003ctd\u003eAverage \u0026gt;95%, Minimum \u0026gt;90%\u003c\/td\u003e\n\u003ctd\u003eMaximum \u0026lt;1% Average \u0026lt;0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003ctd\u003e410-500nm\u003c\/td\u003e\n\u003ctd\u003eAverage \u0026gt;95%, Minimum \u0026gt;90%\u003c\/td\u003e\n\u003ctd\u003eMaximum \u0026lt;1% Average \u0026lt;0.5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSKU: ATK-0164\u003c\/p\u003e","brand":"Atik","offers":[{"title":"Default Title","offer_id":42045267443781,"sku":"ATK0164","price":719.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/6673\/1845\/files\/atik-lrgb-2-filter-kit-619460.jpg?v=1731540426"},{"product_id":"antlia-lrgb-v-pro-filters-1-25-inch","title":"Antlia LRGB V Pro Filters","description":"\u003cp\u003eThe Antlia LRGB-V Pro series filters are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF\/KAI sensors, Sony IMX sensors, GSENSE and other sensor manufacturers. The LRGB-V Pro set is designed to approximately equalize the RGB response from the flux of red-sensitive CCD detectors. The result is that you achieve 1:1:1 equalized RGB exposures with the benefit of simplified post processing and reduced imaging time. New LRGB-V Pro series filters feature a carefully designed spectral gap between the green and red channels to minimize the effect of light pollution and to provide high transmittance of useful frequencies. The filters’ design maximizes the capture of details from fainter galaxies and nebulae emissions. The LRGB-V Pro series filters guarantee the high transmission of the OIII band in both the B and G filters (OIII signal \u0026gt;95% in blue and green). The bandwidth of the B channel is narrowed for the purpose of improving the blue channel overflow (haloing) around the star due to B channel overexposure. Antlia LRGB-V Pro series filters block the emission line around 589nm by the design of wide gap between G and R filters, which suppresses much of the light pollution from high pressure sodium and mercury street lamps and results in a more natural color balance. The uniformity in substrate thickness delivers good parfocal performance across all Antlia filters.\u003c\/p\u003e\n\u003cp\u003eHighlight of LRGB-V Pro series set\u003c\/p\u003e\n\u003cp\u003e1. Premium coating technology and finely polished substrate Our quality selection processes are optimized to ensure highly homogeneous glass-substrates. Our application of advanced optical coating technology and double-sided precision polishing achieves both consistent parfocal and optical performance across all filters. 2. Maximized colour balance and contrast for each of the three RGB channels and excellent S\/N performance Dozens of coating layers are deposited on both sides of the glass substrate that enables LRGB-V Pro filters to achieve a high SNR. The Anti reflection coatings and carefully designed spectral gaps minimize unwanted light scatter and maximize useful signal data for each filter channel.\u003c\/p\u003e\n\u003cp\u003e3. Tighter star profiles and halo reduction The cut-off rate of LRGB-V Pro series set is designed in high level to minimize halos around brighter stars and reduce star bloat. Our careful design of the blue channel transmission characteristics targets the problem of blue star bloating.\u003c\/p\u003e\n\u003cp\u003eApplication and Performance:\u003c\/p\u003e\n\u003cp\u003e1. Designed for monochrome CCD and CMOS cameras\u003c\/p\u003e\n\u003cp\u003e2. Great imaging colors for celestial objects, galaxies, star clusters and nebulae\u003c\/p\u003e\n\u003cp\u003e3. AR anti-reflection film design for secondary reflection and star halo reduction\u003c\/p\u003e\n\u003cp\u003e4. R-Filter provides maximum transmission of H-alpha and S II emission\u003c\/p\u003e\n\u003cp\u003e5. B\/G overlap doubles the energy in the OIII line\u003c\/p\u003e\n\u003cp\u003e6. Balanced RGB-design offer 1:1:1 exposure times for most telescope optical systems\u003c\/p\u003e\n\u003cp\u003e7. All Antlia LRGB-V Pro filters are edge blackened to eliminate internal reflections from stray light\u003c\/p\u003e\n\u003cp\u003e8. The substrate thickness of each of the four LRGB filers is maintained to tight tolerances\u003c\/p\u003e\n\u003cp\u003e9. Not recommended for Solar observing and imaging\u003c\/p\u003e\n\u003cp\u003e10. Not recommended for visual observation\u003c\/p\u003e\n\u003cp\u003eImportant Note: When using any parfocal filters, the user may still experience focus shifts between filters during long imaging sessions. It is important to remember that temperature shifts will change the length of the optical path due to the differential contraction between the telescope tube and the glass optical elements. It is recommended that the photographers check focus either manually or automatically in software every 1 to 2 hours. In cases where the telescope has been brought from a warm environment to outside, more frequent focus checks are required until the equipment has stabilized nearer to ambient temperature.\u003c\/p\u003e\n\u003cp\u003eTechnical Specifications:\u003c\/p\u003e\n\u003cp\u003eBasic Substrate: optical substrate\u003c\/p\u003e\n\u003cp\u003eFilter Thickness: 2mm+\/-0.05mm for 1.25’’\u003c\/p\u003e\n\u003cp\u003eSurface Quality: S\/D (scratch\/dig)= 60\/40 (Refer to MIL-O-13830)\u003c\/p\u003e\n\u003cp\u003eTransmitted Wavefront: Lambda\/4 or better.\u003c\/p\u003e\n\u003cp\u003eParallelism: less than 30 arcsec\u003c\/p\u003e\n\u003cp\u003eSingle \/ Non-glued substrate\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":"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":"chroma-technology-luminance-filter-copy","title":"CHROMA TECHNOLOGY RED FILTER","description":"\u003cp data-start=\"36\" data-end=\"346\"\u003eThe \u003cstrong data-start=\"40\" data-end=\"72\"\u003eChroma Technology Red Filter\u003c\/strong\u003e is a high-performance astrophotography filter designed to capture precise red wavelengths with exceptional clarity. Engineered for use with monochrome CCD and CMOS cameras, this filter enhances image contrast and detail, making it an essential component for LRGB imaging.\u003c\/p\u003e\n\u003ch3 data-start=\"348\" data-end=\"371\"\u003e\u003cstrong data-start=\"352\" data-end=\"369\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"372\" data-end=\"916\"\u003e\n\u003cli data-start=\"372\" data-end=\"482\"\u003e\n\u003cstrong data-start=\"374\" data-end=\"407\"\u003eHigh Transmission Efficiency:\u003c\/strong\u003e Optimized for maximum red light throughput while minimizing signal loss.\u003c\/li\u003e\n\u003cli data-start=\"483\" data-end=\"582\"\u003e\n\u003cstrong data-start=\"485\" data-end=\"516\"\u003eSuperior Optical Precision:\u003c\/strong\u003e Minimizes wavefront distortion for sharp, high-contrast images.\u003c\/li\u003e\n\u003cli data-start=\"583\" data-end=\"685\"\u003e\n\u003cstrong data-start=\"585\" data-end=\"623\"\u003eAdvanced Anti-Reflection Coatings:\u003c\/strong\u003e Reduces halos and reflections for cleaner astrophotographs.\u003c\/li\u003e\n\u003cli data-start=\"686\" data-end=\"805\"\u003e\n\u003cstrong data-start=\"688\" data-end=\"715\"\u003eInfrared (IR) Blocking:\u003c\/strong\u003e Effectively eliminates unwanted IR contamination, ensuring accurate color reproduction.\u003c\/li\u003e\n\u003cli data-start=\"806\" data-end=\"916\"\u003e\n\u003cstrong data-start=\"808\" data-end=\"831\"\u003eDurable \u0026amp; Reliable:\u003c\/strong\u003e Hard-coated for long-lasting performance in demanding astrophotography conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"918\" data-end=\"1102\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eDesigned for professional and amateur astronomers alike, the \u003cstrong data-start=\"979\" data-end=\"1011\"\u003eChroma Technology Red Filter\u003c\/strong\u003e ensures stunning, true-to-life color balance and detail in your deep-sky imaging projects.\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25 inch MOUNTED","offer_id":42499804266565,"sku":"CT-27041-1.25M","price":330.0,"currency_code":"AUD","in_stock":true},{"title":"2 inch MOUNTED","offer_id":42499804299333,"sku":"CT-27041-2M","price":1030.0,"currency_code":"AUD","in_stock":true},{"title":"31mm UNMOUNTED","offer_id":42499804332101,"sku":"CT-27041-31D","price":330.0,"currency_code":"AUD","in_stock":true},{"title":"36mm UNMOUNTED","offer_id":42499804364869,"sku":"CT-27041-36D","price":480.0,"currency_code":"AUD","in_stock":true},{"title":"50mm UNMOUNTED","offer_id":42499804397637,"sku":"CT-27041-50D","price":930.0,"currency_code":"AUD","in_stock":true},{"title":"50x50mm UNMOUNTED","offer_id":42499804430405,"sku":"CT-27041-50X50","price":980.0,"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-technology-green-filter","title":"CHROMA TECHNOLOGY GREEN FILTER","description":"\u003cp data-start=\"38\" data-end=\"370\"\u003eThe \u003cstrong data-start=\"42\" data-end=\"76\"\u003eChroma Technology Green Filter\u003c\/strong\u003e is a high-precision astrophotography filter designed for LRGB imaging with monochrome CCD and CMOS cameras. 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