Newtonian reflection astronomical telescope Primary Mirror Dia.203

Specification

Caliber: 203mm,

Focal length: 1000mm

Primary mirror, aluminum plating and protective film.

The parabolic surface accuracy PV is guaranteed to be better than 1/10 of the wavelength of the light wave, 

and the spherical aberration is less than 1/15 of the wavelength. 

The lens blank is made of K9, with a diameter of 203mm, 

This high-precision parabolic mirror has been recognized by many astronomy enthusiasts, scientific research institutes, and optical manufacturers. 

With 84% aluminum film and silicon dioxide protective film, the film can be used for 8-10 years under moisture-proof storage.

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