Cemented DoubletsClick part # for details or to add to shopping cart.
Specifications
EFL (mm): 4.5
Major Dia: 3
ET: 3
Glass Type Code: WW
R1: 3.07
V1H1: 0.6
CT Lens 1: 2
V2H2: -1.7
R2: -2.09
FF: 3.9
CT Lens 2: 1.5
A: 4.3
R3: -7.56
BF: 2.8
D: 3
The classic structure of a doublet combines a positively powered crown element with a negatively powered flint element. They deliver high performance when the application involves small fields of view, typically up to 6 degrees. Their image quality surpasses that of singlets.