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1.25''/2''/EOS-C UHC Filter for Astronomy Telescope Eyepiece/ Camera

SKU: F9131
US$ 46.00
  • UHC filters or light pollution reduction filters are designed to selectively reduce the transmission of certain wavelengths of light;especially those produced by artificial light
  • Sky background is darker;and contrast of emission nebulae are noticeably improved;the perfect filter for viewing nebula from light polluted skies;or for boosting the contrast of nebula from dark sky sites
  • Due to its ability to produce exceptionally sharp and clear images;this UHC filter is considered one of the most popular astronomy accessories;it can be used not only for celestial observations but also for astrophotography
  • 1.25'' barrel diameter simply attach to eyepiece cased in a sturdy transparent case;standard filter thread for 1.25" eyepieces and other accessories
  • Optical glass lens;aluminum frame;significantly reduces light pollution;great for city and suburban observation
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Model F9131A  F9131B  F9131D 
Size 1.25'' 2'' EOS-C
thickness​ 1.85mm 1.85mm​ 1.85mm​
Type Ultra High Contrast Filter (UHC Filter)
Thread Standard M28.5*0.6 Standard M48*0.75 Canon EOS-C

1. Light Pollution Reduction UHC Filters are designed to selectively reduce the transmission of certain wavelengths of light specifically those produced by artificial light. This includes mercury vapor and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere

2. The new ultra high contrast Svbony UHC filters has improved contrast over the typical broadband filters. Sky background is darker, and contrast of emission nebulae are noticeably improved

3. We provide you with three different sizes to choose from, 1.25'' and 2'' for eyepiece, EOS-C filter is for Canon EOS-C interface

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