UHC Telescope Filter 1.25 Inches UHC Filter Ultra HIGH Contrast Filter Astrophotography To Improve The Image Contrast Reduces Light Pollution Filter

Astromania Telescope Filter, 1.25 Inches Planetary Filter For Astronomy Telescope Eyepiece, Color Filter For Enhancing Contrast In Lunar Planetary

Alpine Astronomical Baader S-II Narrowband Filter (1.25" Eyepiece Filter Filter)

Alpine Astronomical Alpine Astronomical Baader Single Polarizing Filter (1.25")