The Taiwanese company STC Optical has created a slide-in filter for Canon and Nikon full frame DSLRs that can reduce light pollution in astrophotography. It’s called the STC Astro-Multispectra Clip Filter.

The filter is installed in Canon and Nikon DSLRs by sliding the filter into the mirror box after locking the mirror up in your […]. petapixel.com

2016-12-23 22:19