Cemented DoubletsClick part # for details or to add to shopping cart.
Specifications
EFL (mm): 25
Major Dia: 12
ET: 4
Glass Type Code: G
R1: 15.04
V1H1: 1.1
CT Lens 1: 3.8
V2H2: -2.8
R2: -12.48
FF: 23.9
CT Lens 2: 2
A: 25.2
R3: -33.1
BF: 22.2
D: 22.8
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.