Cemented DoubletsClick part # for details or to add to shopping cart.
Specifications
EFL (mm): 25
Major Dia: 12.5
ET: 4.9
Glass Type Code: T
R1: 17.26
V1H1: 0.2
CT Lens 1: 5
V2H2: -3.5
R2: -10.93
FF: 24.8
CT Lens 2: 1.3
A: 25.9
R3: -107.02
BF: 21.5
D: 21.7
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.