New to AstroBin? Discover how we help astrophotographers share and preserve their work. Learn more
Filter
This item is frozen as ambiguous and cannot be associated to images again.

Optolong H-beta 25nm

agenaastro.com/.../optolong-2-h-beta-25nm-narrowband-filter.html
TypeHydrogen-beta (Hβ)
SizeOther
Bandwidthn/a
Users 1
Images 9
Most often used with

There doesn't seem to be anything here.

Also available in the following variants:
1.25"
2"