D203 F750 Astronomical Reflection Telescope Mirror Spherical Lens For Sale
D203 F750 Astronomical Reflection Telescope Mirror Spherical Lens :
Condition: New & High Quality
Diameter: : 203mm
Focal length: 750mm
Coating: Aluminum surface and protective filmHow 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 D203F750 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: