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A superzoom or ultrazoom lens is a type of photographic
A superzoom or ultrazoom lens is a type of photographic zoom lens
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'').
A true zoom lens or optical zoom lens is a type of '' parfocal ...
with unconventionally large focal length
The focal length of an Optics, optical system is a measure of how strongly the system converges or diverges light; it is the Multiplicative inverse, inverse of the system's optical power. A positive focal length indicates that a system Converge ...
factors, typically ranging from wide angle
''Wide Angle'' is the debut studio album by Welsh breakbeat group Hybrid (Welsh band), Hybrid. It was released to critical acclaim, described by ''The Times'' as "one of the most moving pieces of electronic music ever". The album was re-relea ...
to extreme long lens focal lengths in one lens. There is no clear definition of a superzoom lens, but the name generally covers lenses that have a range well above the 3× or 4× (e.g., 28-85 mm or 70-210 mm) of a standard zoom lens, with lenses being 10×, 12×, 18×, or above considered superzoom.
Advantages of a superzoom lens include compositional flexibility, reduced need to swap lenses, and enhanced portability by consolidating the functionality of multiple lenses into one. Due to trade-offs in the optical design, superzoom lenses are noted for having poorer optical quality at the extreme ends of their zoom ranges, often due to distortion. The longer focal lengths are usually accompanied by optical image stabilization
Image stabilization (IS) is a family of techniques that reduce blurring associated with the motion of a camera or other imaging device during exposure.
Generally, it compensates for pan and tilt (angular movement, equivalent to yaw and pi ...
in order to be usable handheld
A mobile device or handheld device is a computer small enough to hold and operate in hand. Mobile devices are typically battery-powered and possess a flat-panel display and one or more built-in input devices, such as a touchscreen or keypad. Mod ...
.Chris Gatcum, The Beginner's Photography Guide, Dorling Kindersly Limited/Penguin - 2013, page 107
See also
*List of superzoom compact cameras
This is a list of superzoom compact cameras, also known as travel zoom cameras. These are small fixed-lens "point-and-shoot" digital cameras that have a high optical zoom ratio.
These cameras all include a power zoom lens that retracts into ...
* List of bridge cameras
This is a list of bridge cameras, which are loosely defined as fixed-lens digital cameras with DSLR-style bodies and superzoom lenses. Their larger bodies and lenses differentiate them from smaller superzoom compact cameras, also known as t ...
Notes
References
{{Reflist, 2 Photographic lenses