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Newton Reflective Telescope D160 F1300 Reflective Objective Mirror Main MirrorCaliber: 160mmFocal length: 1300mm 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).Package includes:1PC D160F1300 Primary mirror1PC secondary mirror Mirror
Newton Reflective Telescope D160 F1300 Reflective Objective Mirror Main Mirror
Caliber 160mm
Focal length 1300mm
The main mirror material is K9 glass, spherical reflecting concave mirror, with diameter of 160mm, focal length of 1300mm, focal ratio (the ratio of focal length to aperture) of 8.12, and the surface is coated with aluminum film and oxide film
Package includes
1PC D160F1300 Primary mirror+1PC secondary mirror Mirror
UsedCleaning 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).
