The Astro-Tech 1.25" 13% transmission neutral gray filter reduces the brightness and glare that can mask low contrast details during lunar and planetary visual observing.
The 1.25" Astro-Tech broadband light pollution filter reduces moderate city light pollution as much as the best-known filters, but at only a fraction their price.
The economical Astro-Tech 1.25" UV/IR cutoff and luminance filter sharpens CCD images, particularly those containing stars that are strong UV and /or IR emitters.
