thumb|Pressing the shutter button In photography, the '''shutter-release button''' (s just '''shutter release''' or '''shutter button''') is a push-button found on many cameras, used to record photographs.<ref> {{cite book | title = Digital Photography All-in-One Desk Reference for Dummies | author = David D. Busch | publisher = For Dummies | year = 2006 | isbn = 978-0-470-03743-0 | page = 260 | url = https://books.google.com/books?id=-XENqZmgWm0C&dq=shutter-button+shutter-release+shutter-release-button&pg=PA260 }}</ref> When pressed, the shutter of the camera is "released", so that it opens to capture a picture, and then closes, allowing an exposure time as determined by the shutter speed setting (which may be automatic). Some cameras also utilize an electronic shutter, as opposed to a mechanical shutter.
The shutter-release button is one of the most basic features of a dedicated handheld camera. Mobile devices such as modern smartphones have a touchscreen button for capturing photos, but also have a physical shutter button as well, as the sound volume buttons are used as such, with exception of some phones having a dedicated shutter button.
The term "release" comes from old mechanical shutters that were "cocked" or "tensioned" by one lever, and then "released" by another.<ref> {{cite book | title = Photography in Archaeology and Conservation | author = Peter G. Dorrell | publisher = Cambridge University Press | year = 1994 | isbn = 978-0-521-45554-1 | page = 42 | url = https://books.google.com/books?id=RkBuiowOu1MC&dq=shutter+cocked+tension+lever+release&pg=PA42 }}</ref> In modern or digital photography, this notion is less meaningful, so the term "shutter button" or simply "capture button" is more used.
==See also== * Remote shutter * Selfie stick * Bulb (photography)
==References==
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Category:Camera features