zoom lens
Sign in to savecamera lens with a variable focal length
~13 min read
Encyclopedic overview
Nikkor 28–200 mm zoom lens, extended to 200 mm at left and collapsed to 28 mm focal length at right
A zoom lens is a system of camera lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed-focal-length (FFL) lens (prime lens).
Excerpted from Wikipedia’s “zoom lens” article, available under the CC BY-SA 4.0 licence.