Cemented DoubletsClick part # for details or to add to shopping cart.
Specifications
EFL (mm): 8
Major Dia: 5.5
ET: 3
Glass Type Code: B
R1: 5.29
V1H1: 0.8
CT Lens 1: 2.9
V2H2: -1.9
R2: -3.68
FF: 7.2
CT Lens 2: 1
A: 7.9
R3: -9.35
BF: 6.1
D: 6.5
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.