The distance from the optical center of the lens to the focal plane of the video camera when the lens is focused at infinity is called -----------------------
A)focal length
B)angle of view
C)zoom ratio
D)iris

Question

Quizplus · Accepted Answer

The focal length of a lens is defined as the distance from the optical center of the lens to the focal plane (where the image is formed) when the lens is focused at infinity. This measurement is crucial in determining the field of view and magnification capabilities of the lens.

The Distance from the Optical Center of the Lens to the Focal