Antlia O-III Pro Filter - 3 nm Narrowband - 1.25 Inch mounted

Antlia narrowband filter with 3 nm bandwidth

Antlia nebula filters offer extreme contrast. Thus, the astrophotographer achieves a very good result even with considerable stray light from cities or from the moon. Antlia guarantees a transmission of at least 88% in the 1 nm range around the central passband. This makes the narrowband filters interesting also for fast telescopes and objectives. Even at an extreme focal ratio of f/3, there is only minimal transmission loss.

The quality features of Antlia narrowband filters at a glance:

High light transmission and narrowest bandwidth to maximize contrast

Steep spectral profile minimizes halos around bright stars

Single substrate to eliminate internal reflections

Use in light-polluted areas and dark locations

Extends exposure time in moonlight conditions

Antlia Narrowband Pro filters can be used with low signal loss down to F/3 systems

All Antlia narrowband filters are blackened at the edges to prevent internal reflections of stray light

Superior optical reliability reduces post-processing of the image