Cemented DoubletsClick part # for details or to add to shopping cart.
Specifications
EFL (mm): 15
Major Dia: 7.5
ET: 3.6
Glass Type Code: M
R1: 8.91
V1H1: 0.8
CT Lens 1: 3.5
V2H2: -2.5
R2: -5.6
FF: 14.2
CT Lens 2: 1.3
A: 15.1
R3: -20.96
BF: 12.5
D: 12.8
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.