Chroma H-beta (3 nm) Filter, 2" mounted

Chroma Narrowband Filters with 3 nm Bandwidth

These nebula filters from Chroma offer extreme contrast. Thus, the astrophotographer achieves a very good result even with considerable stray light from cities or from the moon. The high transmission is given up to a focal ratio of f/4.

In contrast to H-alpha filters, H-beta filters can also be used visually, but here objects have only about one third of the intensity they have with H-alpha.

The quality features of these narrowband filters at a glance:

High light transmission and narrowest bandwidth to maximize contrast

Use in light-polluted areas and dark locations

Extends exposure time in moonlight conditions

These narrowband filters can be used up to f/4 systems with virtually no signal loss.

Blackened edges to prevent internal reflections of stray light

A consistent filter thickness of 3.0 mm ensures parfocality