QHY FILTER MASKS FOR CFW3 Astrophotography 25" filter thread

25" filter thread

Pair of tube rings with adjustment screws

CMOS or CCD cameras in areas with heavy light pollution

This configuration features a parabolic primary mirror with a very short focal ratio (between f/3

QHY FILTER MASKS FOR CFW3 Astrophotography 25" filter threadThe Filter Masks for QHY Filter Wheels are made in different size and shape to suits the different filters types available on the market. 36mm rounded filters 50mm rounded filters 50mm squared filters For the 50mm squared filters, instead of individual masks to apply for each single filter, a single plate has been made which is compatible with the the carousel of the filter wheel.