STC Europe - Heres a review posted on Fstoppers about our #Astro #Multispectra #Filter: "Don't use this filter as an excuse to point your camera up to the sky from downtown New
STC Astro Duo Narrowband 2-inch filter review - Accessories - Reviews - BBC Sky at Night Magazine
AstroPixelProcessor on Twitter: "Astro Pixel Processor 1.068 has been released ;-) - Special Debayer Algoritmes for Dual Narrowband Filters like the STC Astro Duo & OPT TRIAD Tri-Band Narrowband filters https://t.co/PwXUpkOiuY #Astrophotography #