User guide

Glossary 509
Duplicate Version command A command in the Photos menu that duplicates the selected
photo version with all applied metadata and adjustments. See also adjustment, image,
metadata, version.
dust and scratch removal The process of digitally removing the blemishes caused by dust and
scratches on lm scans. See also Retouch adjustment.
dye sublimation A type of printer that creates images by heating colored ribbon to a gaseous
state, bonding the ink to the paper. See also inkjet printer, photo printer, print, RA-4.
Edge Sharpen adjustment An adjustment in Aperture that sharpens the image based on
luminance using multiple sharpening passes. See also adjustment, image, Sharpen adjustment.
editing The process of arranging and eliminating photos. See also photo edit.
eect preset A set of saved adjustment parameter settings. You can create new eect presets
and rename, rearrange the order of, and delete existing eect presets. Eect presets appear in the
Eects pop-up menu in the Adjustments inspector and the Adjustments pane of the Inspector
HUD, and you can also access them by choosing Photos > Add Eect. See also adjustment, eects.
eects A general term used to describe the introduction of unnatural visual elements to
enhance an image. See also compositing, eect preset, lters.
electromagnetic radiation A type of energy ranging from gamma rays to radio waves that also
includes visible light. See also light.
embedded prole The source prole saved in the digital image le. JPEG, TIFF, PNG, and PDF le
formats support embedded proles. See also device characterization, prole.
emulsion The tiny layers of gelatin, consisting of light-sensitive elements, found in lm. When
the emulsion is exposed to light, a chemical reaction occurs. After the lm is developed, an
image appears. See also dust and scratch removal, lm.
Enhance adjustment An adjustment in Aperture that adjusts contrast, denition, saturation, and
vibrancy, as well as black, gray, and white tints in an image. See also adjustment, contrast, Contrast
parameter, denition, Denition parameter, saturation, Saturation parameter, tint, Tint adjustment,
Vibrancy parameter.
evaluative metering A type of metering that operates by dividing the frame into several small
segments, taking a reading from each individual segment, and processing the average of the
total segments to recommend the best exposure value for the overall photo. See also center-
weighted metering, light meter, spot metering.
EXIF Short for Exchangeable Image File. The standard format for storing information—such as
shutter speed, aperture, white balance, exposure compensation, metering setting, ISO setting,
date, and time—about how a photo was shot. See also IPTC, metadata.
export The process of formatting data in such a way that it can be understood by other
applications. In Aperture, photos can be exported in their native RAW format, as well as in
JPEG, TIFF, PNG, and PSD formats. The EXIF and IPTC metadata associated with a photo can be
exported as well.
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