D80F700 Astronomical Reflector Telescope Spherical Wine Red Coating Mirror Lens For Sale
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D80F700 Astronomical Reflector Telescope Spherical Wine Red Coating Mirror Lens :
Coated wine red film astronomical telescope objective d = 83mm f = 700mm multilayer broadband wine red film
Focal length: f700mm
Coating: four side multilayer wide band wine red film (400-700nm)
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 pieces of refracting double separation objective set;
It is used for astronomical telescope objective lens, star seeking lens and collimating objective Policy:5.Please contact us before return.6.All items will be tested before shipment, please do not use the items or damage it, used or damaged parts are not acceptable to return.7.Buyers are responsible for all cost for shipping & reshipping.response Policy:1.Positive response will be appreciate if you are pleased with your purchase.
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