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Aperture priority

Index Aperture priority

Aperture priority, often abbreviated A or Av (for aperture value) on a camera mode dial, is a setting on some cameras that allows the user to set a specific aperture value (f-number) while the camera selects a shutter speed to match it that will result in proper exposure based on the lighting conditions as measured by the camera's light meter. [1]

15 relations: Aperture, Depth of field, Digital camera modes, Exposure (photography), F-number, Image sensor, Landscape photography, Light meter, Mode dial, Motion blur, Photographic film, Portrait photography, Shutter priority, Shutter speed, Waterfall.


In optics, an aperture is a hole or an opening through which light travels.

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Depth of field

In optics, particularly as it relates to film and photography, the optical phenomenon known as depth of field (DOF), is the distance about the Plane of Focus (POF) where objects appear acceptably sharp in an image.

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Digital camera modes

Most digital cameras support the ability to choose among a number of configurations, or modes, for use in various situations.

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Exposure (photography)

In photography, exposure is the amount of light per unit area (the image plane illuminance times the exposure time) reaching a photographic film or electronic image sensor, as determined by shutter speed, lens aperture and scene luminance.

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The f-number of an optical system (such as a camera lens) is the ratio of the system's focal length to the diameter of the entrance pupil.

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Image sensor

An image sensor or imaging sensor is a sensor that detects and conveys the information that constitutes an image.

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Landscape photography

Landscape photography shows spaces within the world, sometimes vast and unending, but other times microscopic.

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Light meter

A light meter is a device used to measure the amount of light.

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Mode dial

A mode dial or camera dial is a dial used on digital cameras to change the camera's mode.

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Motion blur

Motion blur is the apparent streaking of moving objects in a photograph or a sequence of frames, such as a film or animation.

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Photographic film

Photographic film is a strip or sheet of transparent plastic film base coated on one side with a gelatin emulsion containing microscopically small light-sensitive silver halide crystals.

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Portrait photography

Portrait photography or portraiture in photography is a photograph of a person or group of people that captures the personality of the subject by using effective lighting, backdrops, and poses.

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Shutter priority

Shutter priority refers to a setting on some cameras that allows the user to choose a specific shutter speed while the camera adjusts the aperture to ensure correct exposure.

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Shutter speed

In photography, shutter speed or exposure time is the length of time when the film or digital sensor inside the camera is exposed to light, also when a camera's shutter is open when taking a photograph.

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A waterfall is a place where water flows over a vertical drop or a series of steep drops in the course of a stream or river.

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Redirects here:

A mode (photography), Aperture Priority, Aperture priority mode, Aperture value mode, Aperture-priority, Av mode, Av mode (photography).


[1] https://en.wikipedia.org/wiki/Aperture_priority

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