Specifications
EFL (mm): -1.8
Dia: 3
V2H2: -0.3
CT: 1
D: -2.6
ET: 1.4
Material: F6
R1: -2.48
R2: 2.48
BF: -2.1
V1H1: 0.3
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.