Svbony Light Pollution Reduction UHC Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light.
|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