Explore Scientific Nebula Filter 1.25″ H-Beta Range from 478nm to 496nm with peak at 489nm. Transmission 94.5% H-Beta – Hydrogen is the most abundant element in the universe and many nebulae glow in the light of H-beta. This line filter blocks all other wavelengths (and thereby nearly all of the artificial light) and only the […]

Explore Scientific Nebula Filter 1.25″ H-Beta Range from 478nm to 496nm with peak at 489nm. Transmission 94.5% H-Beta – Hydrogen is the most abundant element in the universe and many nebulae glow in the light of H-beta. This line filter blocks all other wavelengths (and thereby nearly all of the artificial light) and only the […]