What feature distinguishes a zoom lens from other types of lenses?

A zoom lens is characterized by its ability to change its focal length, which allows it to vary the field of view. This feature enables photographers to adjust the zoom level, allowing them to capture subjects at different distances without needing to change the lens. By using a zoom lens, one can zoom in for a close-up shot or zoom out for a wider perspective, making it highly versatile in various shooting scenarios.

This capability differentiates zoom lenses from fixed focal length lenses, which have a single focal length and do not allow for adjustment of the field of view. While features like autofocus and visual stabilization may be present in some zoom lenses, they are not definitive characteristics that distinguish zoom lenses from all other types. Additionally, the notion that a zoom lens is designed only for close-up photography is incorrect, as zoom lenses can cater to a broad range of photography needs, from landscapes to portraits.