Reflective Astronomical Telescope Mirror Sets Spherical reflecting telescope lens, surface accuracy :λ=1/6 Remarks: The primary mirror is a spherical surface, and the secondary mirror is an elliptical plane Diameter: 90mm; focal length: 800mm; side thickness: 11mm; the minor axis (diameter of the short side) of the secondary lens is 20mm long; the thickness may vary slightly depending on the manufacturer’s batch. D90F800 reflective objective lens group, spherical lens, aluminum plating and protective film, with center point label, is a good material for DIY telescope enthusiasts.
EAN: 0721223884634
Manufacturer: LHYSM
Brand: LHYSM
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