opposed to a fixed-focal-length (FFL) lens (prime lens). A true zoom lens or optical zoom lens is a type of parfocal lens, one that maintains focus when its...

variable zoom) periscope lens camera. The Asus ZenFone Zoom smartphone, released in 2015, used an Hoya dual-periscope lens mechanism to achieve a 3x zoom. In...

to undermine normal visual perception. The effect is achieved by zooming a zoom lens to adjust the angle of view (often referred to as field of view,...

the Phase One XC. Almost all zoom models with larger sensors have been discontinued in favor of their interchangeable lens counterparts that offer more flexibility...

some are zoom lenses. Pancake lenses are primarily valued for providing quality optics in a compact package. The resulting camera and lens assembly may...

com/imaging/lenses/aps-c-e-mount/p/selp1650 [bare URL] https://www.dpreview.com/articles/1661435549/sony-creates-10-18mm-f4-16-50mm-f3-5-5-6-power-zoom...

of smartphones with a telephoto lens that offers a focal length (35mm equivalent) of at least 100mm or "4× optical zoom" with an imaging area equivalent...

zoom lens, afocal attachments were a way to provide a cheap sort of interchangeable lens system to an otherwise fixed lens camera. In the zoom lens era...

camera. Zoom lenses that are telephotos at one extreme of the zoom range and retrofocus at the other are now common.[citation needed] Telephoto lenses are...

telephoto lenses that allow for the simulation of optical zoom. Full-sized cameras generally have an optical zoom lens, but some apply digital zoom automatically...