intervalometer

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intervalometer

[‚in·tər·və′läm·əd·ər]
(ordnance)
An electrical device used in bombing, by which data is preset in order to drop a desired number of bombs at a constant predetermined interval.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

intervalometer

i. A device connected to an automatic camera, which can be preset to make exposures at a desired constant interval of time.
ii. An electronic device used in bombing, by which data are preset to drop a desired number of bombs at a preset interval.
iii. Any device that may be set to accomplish automatically a series of like actions at constant predetermined intervals.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
A third method is to employ a more advanced intervalometer (either a hardware unit such as the TimeLapse+ or software such as GBTimeLapse) that can "bulb ramp." These typically control the camera through its USB port to automatically shift all three exposure factors--shutter speed, aperture, and ISO--in small, smooth steps over a sequence.
Once you've chosen your subject, it's a simple matter of programming your digital intervalometer for the required exposures.
But the best cameras for long-exposure sequences are DSLRs that have optional, programmable shutter-release units, or digital intervalometers. These include nearly all entry-level models.
Once you've chosen your subject, program your digital intervalometer for the required exposures.
For longer exposures, you can use a special cable release with a built-in intervalometer. It allows you to program a series of long exposures and eliminates the need for a delay between images.
The author shot the scene above in Arches National Park, Utah, using the Canon EOS 6D DSLR, 14-mm lens, and intervalometer pictured at right.