D106F900 Double Separation Green Film Objective Lens Telescope Astronomic Mirror For Sale
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D106F900 Double Separation Green Film Objective Lens Telescope Astronomic Mirror:
$158
Package included:1 pc
Need a large amount can contact me, the price can be discounted? (Depending on your choice, only applies to one size)
Astronomical telescope objective lens D=106mm F=900mm multilayer green film
Coating: Four-sided multilayer blue film; combined image quality: 1/4-1/8; diameter tolerance: +0/-0.12 mm
Center thickness tolerance: ±0.2mm; focal length tolerance: ±0.1%; finish: 60/40; eccentricity: 1'
Remarks; two refraction double-separation objective lens groups; used
for astronomical telescope objectives and collimation objectives;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).If there is any VAT tax that happens during import in the buyer's country, it should be paid by the buyer.Please do not leave a neutral or negtive response before contacting us. Problems can be resolved through friendly communication. Thanks for your understanding.
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