Specifications
EFL (mm): 7.5
Dia: 7.1
D: 7
CT: 3.8
ET: 2.3
Material: S-NSL5
R1: 8.06
R2: -8.06
BF: 6.2
V1H1: 1.3
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.