A/D Converter

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A device that converts analog information (a photograph or video frame) into a series of numbers that a computer can store and manipulate. All…

AA Filter

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Most digital SLR cameras employ an Anti-Aliasing filter (AA) or a Low Pass Filter (LPF) in front of the imager to help eliminate color…

AE Lock

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The ability to hold the current exposure settings and allow you to point the camera elsewhere before capturing the image. This is usually accomplished…

Angle Of View

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The area of a scene that a lens covers or sees. The angle of view is determined by the focal length of the lens….

Aperture

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The lens opening formed by the iris diaphragm inside the lens. This opening can change in diameter to control the amount of light reaching…

Aperture Priority – AE

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Exposure is calculated based on the aperture value chosen by the photographer. This allows for depth of field (DOF: Range of focus) control –…

Aspect Ratio

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The ratio of horizontal to vertical dimensions of an image. (35mm slide frame is 3:2, TV 4:3, HDTV 16:9, 4X5 film 5:4)

Astia

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A type of Film Simulation Mode for soft, fine, smooth tonality. Fidelity of huge and soft tone are the features of this mode.

Auto Scene Recognition

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Framed scenes are automatically detected and selected into appropriate camera settings: Portrait, Landscape, Macro, and Night.

Automatic Camera

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A camera with a built-in exposure meter that automatically adjusts the lens opening, shutter speed, or both for proper exposure.