Specifications
EFL (mm): 31.8
Dia: 25.4
D: 32
CT: 7.3
ET: 2
Material: BK7
R1: 31.59
R2: -31.59
BF: 29.3
V1H1: 2.5
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.