Diameter 61mm Focal Length 228mm Double Cemented Lens Broadband Green Film DIY Binoculars Astronomical Telescope Star Finder
Technical Details
Brand Name: | SRATE |
Focal Length: | 216mm |
Material: | Glass |
Model Number: | K9 Doublet Double Convex Lens |
Shape: | Doublet Double Convex Lens |
Structure: | Double Convex |
Usage: | Optical |
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