Refraction Astronomical Telescope Double Objective Lens Group 72mm DIY Focal 700

Refraction astronomical telescope double objective Lens group 70mm
Astronomical telescope optical system: refraction
Lens Diameter: 72mm, Focal Length 700mm
Effective diameter: 70mm
Attention: 2pcs lens makes a objective lens group.
Package includes: 2pcs lens per lens group.
objective lens
D=72mm F=700mm multilayer Red Wine film
diameter
72mm
focal length
700mm
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
eccentric
1′
Two
lens group
refraction double-separation objective;
For astronomical telescope objectives, finder lenses and collimating objectives
Delivery Details
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2. Items will be shipped within 1-10 business days on payment received.
3. Delivery time depends on destination and other factors, it may takes up to 20 business days.
Policy:
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