Dia. 80mm Doublet DIY Astronomical Optical Telescope Objective Lens MultiFilm

Description

DIY astronomical telescope objective glass lens Blue film
Lens Size:
Focal 330mm Multi Green Film,
Focal 400mm Multi Blue Film,
Focal 400mm Multi Green Film,
Focal 525mm Multi Green Film,
Focal 800mm Multi Blue Film,
Focal 900mm Multi Blue Film
Lens Diameter
83mm
Valid Diameter
80mm
Coating
Multilayer 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'
Attention:
1, Two pieces of double glue lens group
2, Used 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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On Jul-24-20 at 20:00:36 PDT, seller added the following information: