Cemented DoubletsClick part # for details or to add to shopping cart.
Specifications
EFL (mm): 22.4
Major Dia: 18
ET: 11.1
Glass Type Code: WW
R1: 16.22
V1H1: 2.7
CT Lens 1: 10
V2H2: -7.2
R2: -10.28
FF: 19.7
CT Lens 2: 5
A: 22.4
R3: -34.6
BF: 15.1
D: 16.3
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.