Specifications
EFL (mm): 49.2
Length: 20.6
Width (mm): 10.2
CT: 2.5
ET: 1.9
R1: 23.45
BF: 47.6
V1H1: 0
V2H2: -1.7
Specifications: Effective Focal Length (EFL): +- 2%
Length (L): +- .1
Width: +- .14
Center Thickness (CT): +- .5
Cosmetics: 60/40
Surface Quality: Plano surface l/4 per 10mm diameter,
cylindrical surface l/2 in width direction and l/4 per centimeter
in length direction at 546.1nm
Centration: < 3 arc minutes
Designed wavelength: 587.6nm