Specifications
EFL (mm): 50
Dia: 40
CT: 13.7
ET: 2.1
R1: 23
R2: Plano
BF: 40.6
V2H2: -9.4
Specifications: Effective Focal Length (EFL): +/- 1%
Diameter (DIA): +0/-.18
Clear Aperture: 90% of diameter
Center Thickness (CT): +/-.25
Cosmetics: 60/40
Surface Quality: 2 1/2 x 1/2 waves @ 546.1nm
Centering Accuracy: 2 arc minutes TIA
Designed Wavelength: 546.1nm
V1H1= 0
All dimensions are in millimeters.