Astronomik Filters HSO 12nm 36mm (85951)
782.59 $
Tax included
H-alpha Filter: This filter is ideal for photographing hydrogen nebulae, whether you are in areas with strong artificial light pollution or under dark skies. It greatly enhances the contrast between objects that emit H-alpha light and the background sky. With its narrow 12 nm half-width and nearly 100% transmission at the H-alpha wavelength, this filter achieves significantly higher contrast than broadband filters. The 12 nm half-width is perfectly suited for typical CCD and CMOS sensors.