Diameter 25.4 mm Focal Length 30/50/69/75/100 mm Optically
Bonded Lens Glued Lens For Astronomical Telescopes, etc
Diameter: 25.4 mm
Focal Length: 30, 50, 69, 75, 100 mm
Material: K9 optical glass
Applications: Astronomical telescopes, microscopes, spectrometers, laser experiments, etc.
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High-concerned chemical : None
Origin : Mainland China