Specifications
EFL (mm): -30.7
Dia: 12.6
CT: 2
ET: 3.3
R1: -14.07
R2: Plano
BF: -32.1
V1H1: 0
V2H2: -1.4
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 ½ x ½ waves @ 546.1nm
Centering Accuracy: 2 arc minutes TIA
Designed Waveleng