D203F800 Primary mirror +secondary mirror Mirror Set Telescope For Sale
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D203F800 Primary mirror +secondary mirror Mirror Set Telescope:
Newton Reflective Telescope D203 F800 Reflective Objective Mirror Main Mirror
Focal length: 800mm
D203 F800 reflective objective, spherical mirror, aluminized and protective film, is a good choice for diy telescope enthusiastsCleaning 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).