Specifications
EFL (mm): 108.9
Dia: 64
CT: 14
MATERIAL: PYREX
ET: 1.7
BF: 97.2
R1: 41.85
V1H1: -2.5
R2: 196.9
V2H2: -11.7
D: 94.5
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: 587.1nm
All dimensions are in millimeters.