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Aperture priority
noun
A setting in many professional-grade and advanced-amateur-grade cameras which allows a photographer to manually set the aperture setting of an exposure while the camera then automatically selects the correct shutter speed for that exposure.
Exact(44)
Aperture priority (A).
Aperture priority could be considered the more useful of the modes.
"Aperture priority" means that exposure control will be done by the camera adjusting its shutter speed according to the aperture you have chosen.
Aperture priority mode is useful to force a shallow depth of field, and to throw the background far out of focus (or the complete opposite).
Aperture priority (A on Nikon, Av on Canon): If you're shooting under fading light and just want to grab the fastest shutter speed you have available, then use this mode and set the largest aperture you have available (which is to say the smallest f/ number, e.g. f/2.8).
There's no aperture priority setting or shutter priority setting.
Similar(16)
When shooting manually, users can choose from three modes: A-aperture priority, S-shutter speed priority and M-manual and enjoy added control and creativity normally reserved for higher end models.
There are a host of exposure modes to go along with choice of metering systems, including three of the "programmed" sort, plus aperture-priority and shutter-priority settings.
The T-60 isn't a complete throwback, however, since it comes with an aperture-priority automatic exposure mode in addition to its manual metering.
The Canon, Fujifilm, Minolta, Samsung and Toshiba cameras, for example, offer what's called aperture-priority mode (for sharp portrait subjects with blurry backgrounds) and shutter-priority mode (to freeze sports action or blur babbling brooks).
Just like taking still photos, users can capture movies with aperture-priority AE and enjoy a soft, defocused background effect.
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