Astronomik Filters HSO 6nm 2" (85954)
1869.25 BGN
Tax included
H-alpha Filter: This filter is ideal for photographing hydrogen nebulae, whether you are working in light-polluted areas or under dark skies. It significantly enhances the contrast between objects that emit H-alpha light and the background sky. SII Filter: The SII filter is suitable for imaging sulfur emission regions from both light-polluted locations and dark-sky sites. It greatly increases the contrast between objects glowing in the sulfur line at 672 nm and the sky background.