DIY astronomical telescope objective glass lens Blue film Dia. 80mm Focal 330mm

Description

DIY astronomical telescope objective glass lens Blue film Dia. 80mm Focal 330mm
Optical Glass Doublet Double Convex Glass Lens
Material: Optical Glass
Lens Diameter:82mm
Focal Length:330mm
Coated with FGMC Green Film
It can be used on DIY Astronomic Telescope Objective, DIY guidscope
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