Specifications
EFL (mm): 63
Dia: 25.4
D: 62.9
CT: 4.4
ET: 1.5
R1: 57.1
R2: -57.1
BF: 61.5
V1H1: 1.5
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.