Specifications
EFL (mm): 180.8
Dia: 53
CT: 8
MATERIAL: LASFN9
ET: 5.3
BF: 173.2
R1: 88.06
V1H1: -3.4
R2: 197.55
V2H2: -7.5
D: 171.5
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: 587.1nm
All dimensions are in millimeters.