include: 1PC
Caliber: 150mm ; Focal length: 750mm ; Thickness: 18MM
The D150 F750 reflective objective, spherical mirror, aluminized and protective film is a good material for lovers of diy telescopes.
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).
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