In
digital cameras and
digital video recording device, a
zoom lens
let you to select any focal length within the len's range. The lens
changes the angle of view and its magnifying power based on the zooming range selected.
Zooming out gives the photographer a
wide-angle view that captures a wide expanse of a scene. When you zoom in, the
field of view narrows and you can focus on small portions of the scene without having to physically
moving closer.
