ZWO Ha 7nm Filter 2in - The Binocular and Telescope Shop

ZWO Ha 7nm 滤镜 2 英寸

SKU: ZWO-Ha7nm2
Barcode: 0607467928412

$399.00

Available to order
Delivery time: Typically 3 weeks from order

Delivered to anywhere is Australia and New Zealand.
Orders placed before 2 PM are usually shipped the same day.
ZWO Ha 7nm 滤镜 2 英寸

$399.00

$399.00

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Same day shipping

If you order before 2pm we will ship your items same day.
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Expert aftersales support

We fully support our products!
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Minimum 2-Year Warranty. 

+ extended manufacturer warranties
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Aussie Owned & Stocked

Our store is Australian owned and stocked.

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ZWO Ha 7nm 滤光片 2in 可帮助减少某些波长的光的传输，增加星云和夜空之间的对比度，特别是由人造光（包括汞蒸气）以及高压和低压钠蒸气灯以及由大气中的中性氧排放（即天辉）引起的不必要的自然光产生的光。

ZWO Ha 7nm 滤镜的带通为 7nm，可使 656nm 波长的光通过，透光率高达 80%。窄带 H-alpha 天文摄影滤镜的最佳选择，即使在光污染严重的地区也能实现高对比度成像并揭示星云的丰富细节，只需准备好体验它的无限乐趣！

技术数据

  • 半高宽：7±0.5nm
  • 精细光学抛光，确保两个表面均具有精确的 1/4 波前
  • H-alpha 线 656nm 处透射率约为 90%（H-Alpha 滤光片）
  • 红外波长截止700-1100nm
  • 带外透过率 <0.1%，OD3（光密度）
透射曲线

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