astro.n-minus

Filter

Baader Planetarium S-II Narrowband-Filter (6.5nm) – CMOS-optimized

Key specifications

Filter typeNarrowband
PassbandS-II
Bandwidth6.5 nm

About

A CMOS-optimized 6.5 nm FWHM S-II narrowband filter (Precision Grade) for optical systems slower than f/3.4, with Reflex-Blocker hard coatings, sealed coating edges and blackened edges.