Specifications
EFL (mm): 174.8
Dia: 38.1
CT: 6
MATERIAL: CORNING 7980
ET: 3.3
BF: 167.4
R1: 42.25
V1H1: -2.8
R2: 116.44
V2H2: -6.8
D: 165.8
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.