Caliber: 203mm,

Focal length: 750mm,

The thickness of the main mirror about 18mm,

Weighs about 1300 grams,

Spherical mirror, aluminum plating and protective film,

Accuracy of the mirror: 1/6 wave

Aluminized plus protective film, a layer of SIO (silcon oxide) .

The mirror axis of the secondary mirror (short side diameter) Length 70mm.