Cemented DoubletsClick part # for details or to add to shopping cart.
Specifications
EFL (mm): 39.1
Major Dia: 7.3
ET: 2.7
Glass Type Code: D
R1: 22.8
V1H1: 0.4
CT Lens 1: 2.3
V2H2: -1.6
R2: -15.22
FF: 38.7
CT Lens 2: 0.8
A: 39
R3: -63.7
BF: 37.4
D: 37.5
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.