JINGERL D130F650 High-Precision Parabolic Newtonian Reflection Primary Objective Lens,Used for DIY Astronomical Telescope,Hand-Polished (Color : 130mm, Size : 650mm)

Description

• Newtonian mirror D=130mm F=4.8
• Caliber D 133mm
• Focal length F 650mm
• Side thickness 18mm
• Surface accuracy is 1/6, coating, aluminum and protective film

Newtonian mirror D=130mm F=4.8
Caliber D 133mm
Focal length F 650mm
Side thickness 18mm
Surface accuracy is 1/6, coating, aluminum and protective film
Remarks The primary mirror is a spherical surface, and the secondary mirror is an elliptical plane

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