Tuesday, 13 March 2018

focal length - Lens for 1/2" sensors, installed on a 1/3" sensor


I want to install a lens built for sensors 1/x" (with 1 <= x <= 3), on a sensor 1/3". I need to have an horizontal field of view of "a cm", when my working distance is "b cm". What is the formula of the focal length (where the lens is initially adapted for sensors 1/x") I need , please ?




No comments:

Post a Comment

Why is the front element of a telephoto lens larger than a wide angle lens?

A wide angle lens has a wide angle of view, therefore it would make sense that the front of the lens would also be wide. A telephoto lens ha...