Specifications
EFL (mm): 29.3
Dia: 10
CT: 2
MATERIAL: BK 7
ET: 0.9
BF: 27.1
R1: 9.32
V1H1: -0.9
R2: 22.51
V2H2: -2.1
D: 26.7
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.