Babylon NG
The world's best online dictionary

Download it's free

Definition of Calibrated focal length

Calibrated focal length Definition from Government Dictionaries & Glossaries
DOD Dictionary of Military Terms
(*) An adjusted value of the equivalent focal length, so computed as to equalize the positive and negative values of distortion over the entire field used in a camera.
Source: U.S. Department of Defense, Joint Doctrine Division. ( About )