Astro-Tech 2" Extension ring for A-T Ritchey-Chrétien astrographs

Be the first to review this product


Availability: More on the way

This Astro-Tech 2" long extension ring, installed between your Astro-Tech Ritchey-Chrétien astrograph and its focuser, helps you match the back focus required for your particular complement of imaging components . . .