BDCJ D93F800 Astronomical Telescope Accessories Refractor Lens Double colloidal Lens Multi-Layer Coating

Description

• D93F800 Double colloidal lens
• Caliber D: 93mm
• Focal length F: 800mm
• Coating: Multilayer film
• Remarks: Two-piece double glue lens group

D93F800 Astronomical telescope objective D=93mm F=800mm multilayer film
Caliber D: 93mm
Focal length F: 800mm
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'
Remarks: two pieces of double-glue lens set;
For astronomical telescopes, finder mirrors and collimating objectives

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