Specifications
EFL (mm): 50
Dia: 25.4
CT: 6.2
ET: 2
R1: 21.3
R2: Plano
BF: 45.5
V1H1: 0
V2H2: -4.5
Specifications: Effective Focal Length (EFL): +/-1%
Diameter (DIA): +0/-.18
Clear Aperture: 90% of diameter
Center Thickness (CT): +/-.25
Cosmetics: 80/50
Surface Quality: 3 x 1 waves @ 1.5 microns
Centering Accuracy: 3 arc minutes TIA
Designed Wavelength: 1.5 microns
All dimensions are in millimeters.