Astronomik UHC-E 31mm Filter – Enhance Deep-Sky and Comet Observations 20 Pagers An H-alpha filter is the

An H-alpha filter is the best choice for all red-glowing nebulae

making it ideal for visual observation and astrophotography

128×60×34mm ( no including antenna)

and very good quality and the top grade

T128 call system can be used as a contactless tool in hospitals

Astronomik UHC-E 31mm Filter – Enhance Deep-Sky and Comet Observations 20 Pagers An H-alpha filter is theAstronomik UHC E 31mm The Astronomik UHC E filter is our budget filter for deep sky observation of emission nebulae and comets under light polluted skies. Its particularly suitable for small scopes. The UHC E Filter increases contrast of emission nebulae and comets and blocks the light of typical streetlights as well as airglow. It is best suited for telescopes up to 5" 125mm. Main use The Astronomik UHC E filter provides a FWHM of 45nm and blocks the