Sky-Watcher Quattro 250P 10" CF (Carbon Fiber!) Imaging Newtonian with Free Pre-installed ZWO EAF! - S11220 (Pre-owned) Canon EOS Filters Sensor Model: Sony IMX662

Sensor Model: Sony IMX662

Designed for use with Tele Vue eyepieces that have smaller eyeguards

To minimize focuser in-travel

precise focusing adjustments

They also compensate for the colour error that would otherwise be introduced through the prisms when using telescopes between f/4 and f/7

Sky-Watcher Quattro 250P 10" CF (Carbon Fiber!) Imaging Newtonian with Free Pre-installed ZWO EAF! - S11220 (Pre-owned) Canon EOS Filters Sensor Model: Sony IMX662Used, in excellent condition. Includes ZWO EAF 254mm aperture, 1000mm focal length Fast f 4 focal ratio Parabolic mirror designed for imaging with 94% reflectivity 10: 1, dual speed, 2 inch Crayford style focuser Oversized secondary mirror produces greater illumination for full frame DSLR and CCD cameras Tube rings, mounting plate, eyepiece adapters, and 9x50 finder scope included The Sky Watcher Quattro Imaging Newtonian with dual speed focuser