Product series:

Astrozap
Bahtinov focusing mask for 63mm-139mm apertures
$ 74.96
ready for shipping in 24
h

Astrozap
Bahtinov focusing mask, 292mm-368mm
$ 153.91
ready for shipping in 3-5
weeks

Astrozap
Bahtinov focusing mask for apertures of 368mm-444mm
$ 178.89
ready for shipping in 24
h

Astrozap
Bahtinov focus mask for 216mm-292mm apertures
$ 108.93
ready for shipping in 3-5
weeks

Astrozap
Bahtinov focusing mask for 139mm-216mm apertures
$ 82.95
ready for shipping in 3-5
weeks