Black's Photo Glossary
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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EFFECTIVE FOCAL LENGTH (EFL)
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See FOCAL LENGTH.
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ELECTRONIC FLASH
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See FLASH.
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ENLARGEMENT
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A photographic print that is larger than the initial print. For example, 4 x 6 snapshots are often enlarged to 5 x 7 or 8 x 10 size.
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EXIF
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Short of Exchangeable Image File. EXIF stores image and camera data such as date, time, aperture, ISO, and exposure time in JPEG, TIFF and RAW image files for later retrieval. It also ensures compatibility and the ability to exchange cards and images between cameras, cards, and card readers and computers. EXIF data can be viewed on your camera’s screen or with certain types of imaging software on a computer.
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EXPORT
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To save a file in another format for use with another application.
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EXPOSURE
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The total amount of light that reaches the sensor. Varies according to shutter speed and aperture width.
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EXPOSURE COMPENSATION
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A feature on digital cameras that allows the user to increase or decrease exposure in automatic modes (such as portrait, landscape, night) without having to manually change aperture or shutter settings.
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