Newtonian Reflecting Astronomical Telescope D203 F800 Reflecting Objectives

Diameter: 203mm

Focal length: 800mm

D203 F800 reflecting objective lens group, spherical mirror, aluminized and protective film, is a good choice for DIY telescope enthusiasts.

Newtonian mirror D=203mm F=4

Caliber D 203mm

Focal length F 800mm

Side thickness 18mm

Surface accuracy λ 1/6

Coating Aluminium plus protective film

Remarks The primary mirror is a spherical surface, and the secondary mirror is an elliptical plane