Specifications
EFL (mm): -8.5
Dia: 9
V2H2: -0.5
CT: 1.8
D: 10.2
ET: 4.2
Material: BK7
R1: -9.08
R2: 9.08
BF: -9
V1H1: 0.5
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.