Specifications
EFL (mm): 64
Dia: 76.2
D: 67
CT: 35
ET: 2.3
R1: 52.5
R2: -52.5
BF: 50.6
V1H1: 13.4
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
All dimensions are in millimeters.