D203 F1600 Astronomical Reflection Telescope Mirror Spherical Lens For Sale
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D203 F1600 Astronomical Reflection Telescope Mirror Spherical Lens :
Focal length: 1600mm,
The thickness of the main mirror about 18mm,
Weighs about 1800 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 42mm.
How to cleaning the mirror surface ? First blow off the dust that can be blown off with a blown balloon, then use a good quality absorbent cotton to dip the alcohol and gently wipe the mirror.
After drying, look at the light source from the side to see if there is some cotton or Keep the water stains on top, and if necessary, gently wipe them with some good quality mirror cloth (be careful, otherwise it will affect your telescope).
Package include:1 x D203F1600 Primary Mirror + Secondary Mirror
（Need a large amount can contact me, the price can be discounted）
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On Jul 4, 2022 at 23:00:34 PDT, seller added the following information: