Cemented DoubletsClick part # for details or to add to shopping cart.
Specifications
EFL (mm): 13.3
Major Dia: 7
ET: 4.1
Glass Type Code: A
R1: 9.18
V1H1: 1.3
CT Lens 1: 4.5
V2H2: -2.4
R2: -5
FF: 12
CT Lens 2: 0.8
A: 12.7
R3: -12.99
BF: 10.8
D: 11.3
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.