Optolong 3nm Narrowband Filters: ReviewI recently tested Optolong’s new 3nm hydrogen-alpha, oxygen-III, and sulfur-II filters and overall I am very satisfied, particularly for their price point ($439 each... Read More
Astronomik H-Alpha Clip-In Filter for DSLRs Reviewed What would it take to be able to shoot deep-sky objects any clear night of the month, regardless of Moon phase? The answer... Read More
Chroma Narrowband Filters for Astrophotography in Light-Polluted SkiesAnyone who images under bright skies knows that even with a light pollution filter, all that background light is hard to beat. The images... Read More