D20D203F1270 Mirror for Newtonian Reflector Astronomical Telescope3
Description
D203F1270 Mirror for Newtonian Reflector Astronomical Telescope
Specification:
Primary mirror: spherical
Caliber: 203mm
Focal length: 1270mm
The thickness is about 18mm
Surface accuracy: 1/6 λ
Reflected at: 92%
Secondary minor axis:50mm
Coating, aluminizing and protective film