Photography Terms and Definitions
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A simple technique professional photographers use to ensure they properly
auto exposure expose their pictures, especially in challenging lighting situations. When AEB is bracketing (AEB): selected, the camera automatically takes three or more shots with a different
exposure for each frame.
Autofocus refers to a camera lens' ability to adjust its configuration in order to focus properly on a subject regardless of whether it is near or far from the
autofocus (AF) camera. Autofocus lenses generally provide vastly superior image quality than do their fixed focus cousins since they do not have to rely on their depth of field. Also known as: "AF",
An
albumto some
Analog to Digital
A circuit that converts an analog signal, having a continuously varying amplitude,
Converter
to a digitally quantized representation using binary output signals.
(A/D or ADC)
Usually refer to image aspect ratio or pixel aspect ratio.
Image aspect ratio: The ratio of the image width to the image height.
aspect ratio Pixel aspect ratio: The ratio of the distance between sampling points in the two orthogonal sampling directions. If the distances are equal, the pixel aspect ratio equals 1:1 and is said to be “square.”
With auto white balance, the camera attempts to determine the color
auto white balance
temperature of the light and automatically adjust for that color temperature. Many
(AWB)
people just leave the camera set to auto white balance all the time.
Charge Coupled
A type of silicon integrated circuit used to convert light into an electronic signal.
Device (CCD)
Usually refer to image compression or sound file compression.
Image compression: A process that alters the way digital image data are
compression encoded in order to reduce the size of an image file.
Sound file compression: A process of altering the sound data coding in order to reduce the size of a sound file in the electronic still picture camera.
A
connection
data between devices.
A standardized ASCII file created in a digital camera and stored on removable Digital Print Order media along with the image files that indicate how many copies of which images
Format (DPOF) should be printed. It also allows index prints, cropping, and text overlays to be specified.
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