Product series:

Astrozap
Bahtinov focusing mask, 292mm-368mm
$ 155.00
ready for shipping in 3-5
weeks

Astrozap
Bahtinov focus mask for 216mm-292mm apertures
$ 110.00
ready for shipping in 3-5
weeks

Astrozap
Bahtinov focusing mask for 139mm-216mm apertures
$ 84.00
ready for shipping in 3-5
weeks