Filter · 2026–

Askar Colour Magic 3nm D1

Askar · Colour Magic 3nm D1 · narrowband 2" telescope filter

Key specifications

Filter type	Narrowband
Passband	Hα 656.3 / OIII 500.7 nm
Bandwidth	3 nm
Filter size	2"

About

2" Colour Magic 3nm duo-narrowband filter (Hα/OIII) — a tighter-bandpass evolution of the D1 for higher contrast and better light-pollution rejection than the 6nm versions.

Where to buy

firstlightoptics.com

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