astro.n-minus

Filter

Astronomik UHC-E T-Mount (M42x0.75)

Key specifications

Filter typeLight Pollution
Passband465-530nm + above 645nm
Bandwidth45 nm
Filter sizeOther
MountedYes

About

A wider-passband companion to the UHC, aimed at emission nebulae and comets under light-polluted skies with telescopes up to 5" of aperture. Its 45 nm FWHM passes more starlight than the UHC while still blocking typical streetlight emissions and airglow. This is the T-mount (M42×0.75) version.