Orion® 10" f/3.9 Newtonian Astrograph Reflector

Our largest re ector optimized for imaging boasts 10” parabolic primary optics with a very fast f/3.9 focal ratio and a large 82mm minor-axis secondary for exceptional wide- eld imaging performance. The dual-speed Crayford focuser lies 7.5” (19.05cm) from the front of the telescope for high-contrast performance. A rigid steel reinforcing plate eliminates exure for trouble-free use of heavy imaging gear.