Cemented DoubletsClick part # for details or to add to shopping cart.
Specifications
EFL (mm): 8.1
Major Dia: 5
ET: 5
Glass Type Code: BB
R1: 6.2
V1H1: 2.4
CT Lens 1: 4
V2H2: -2.2
R2: -2.93
FF: 5.7
CT Lens 2: 2
A: 6.2
R3: -6.29
BF: 5.9
D: 6.4
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.