Specification:
Material : Optical glass
Diameter: 13mm
Focal length: 36.68mm
Center thickness: 4mm
Focal length tolerance: ±1%
Thickness tolerance: ±0.2mm
Surface quality: 60/40
CA (effective clear aperture): >90%
Optical coating: 400~700NM
Application: Collimation/Achromatic/Telescope Objective