-40%
D80F400 Green Film Objective Lens Telescope Astronomic Profession Mirror
$ 39.6
- Description
- Size Guide
Description
Package include:1PC
(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=83mm F=400mm Multi-layer broadband film
Caliber: D83mm
Focal length: F400mm
Coating: Four-sided multi-layer broadband 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 refraction type double separation objective lens group;
Used for astronomical telescope objectives, finder lenses and collimating objectives;
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