Astro-Tech Photo-visual Coma Corrector & field flattener for fast focal ratio Newtonian reflectors

Availability: More on the way

The Astro-Tech Coma Corrector is a photo/visual auxiliary lens system that fits into the 2" focusers of all f/3.5 to f/6 Newtonian reflectors to drastically reduce coma and curvature of field in astrophotography and visual observing . . .