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Glossary
Glossary
additive color Images with color elements derived from the light source itself. RGB is a
common form of additive color. See also RGB.
adjustment Any change to the appearance of an image.
Adobe RGB (1998) A commonly used color profile often used for printing. Many
professional labs request that image files be delivered in this color space. See also
color space.
album A type of container in the Aperture Library that holds only versions. You can
create albums at either the project level or within a project. See also folder, Library,
project, version.
alternate The image immediately next to the pick in a stack. Alternate images are useful
when more than one image in a stack merit the pick position. See also pick, stack.
ambient light The lighting characteristics that already exist in the scene (indoor or
outdoor) without any additional light supplied by the photographer.
analog-to-digital conversion The process of transforming light energy voltage values
captured by the camera’s digital image sensor into binary (digital numbers) for
processing and storage. See also digitization, quantization.
angle of view The area of the scene displayed within the frame. Determined by the
focal length of the lens.
aperture An adjustable iris or diaphragm in the lens through which light passes.
Measured in f-stops. See also f-stop.
aperture priority A setting on certain cameras that automatically sets the shutter
speed for a correct exposure based on the aperture setting provided by the
photographer. See also exposure, shutter priority.
archive The process of storing image data on a permanent medium, such as optical
media (CD or DVD).
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