⭐Contains a primary lens with an objective lens diameter of 150mm and a focal length of 750mm, and a secondary mirror with a short axis (short side diameter) of 35mm length. This is the core component of a set of mirrors.
⭐Uses: used in astronomical telescope accessories
⭐Features: The main mirror is a spherical mirror with aluminized surface and a protective film to prevent scratches on the main mirror under light touch. The workmanship is excellent.
⭐Package Include :1Pcs
وصف
How to use？ 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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