zoom


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zoom

[züm]
(engineering)
To enlarge or reduce the size of an image in an optical system or electronic display.

zoom

zoomclick for a larger image
An example of zoom climb and zoom ceiling.
i. An abnormally steep climb in which speed is traded for height. This is carried out near the ground by aircraft flying at very high speeds. Zoom maneuvers are normally carried out by aircraft with a high-thrust weight ratio.
ii. A technique of a high-performance aircraft climbing steeply at a high altitude at an optimized speed. The aircraft normally accelerates to the maximum level Mach number, trades speed for height, and reaches to an exceptional height far above the sustained ceiling level. The speed at that height is still very high, unlike a zoom at low altitudes. The altitude thus achieved is called a zoom ceiling.

zoom

(graphics)
To show a smaller area of an image at a higher magnification ("zoom in") or a larger area at a lower magnification ("zoom out"), as though using a zoom lense on a camera.

Unlike in an optical system, zooming in on a computer image does not necessarily increase the amount of detail displayed since this is limited by what is actually stored in the image. Similarly, you cannot zoom out beyond the full size of the image.

zoom

To change from a close-up view to a distant view (zoom out) or from a distant view to a close-up view (zoom in). An application may provide fixed or variable levels of zoom, and a graphics card may also have built-in zoom capability. All cameras have some zoom capability (see optical zoom and digital zoom).
References in periodicals archive ?
Unfortunately, it's not so simple to use the zoom feature on the Apple Watch when users are new to the device.
I'm thrilled that Zoom has decided to continue its measurement of the ZoomFitness Network and expand its relationship with Nielsen.
The Galaxy S4 Zoom sports a good 16 MP rear-facing camera with Xenon flash and a 1.
Users will get twice as much storage capacity on S5 Zoom with 16 GB and may even support 128 GB microSD card, which Galaxy S5 original can.
The Unilite Zoom has all the features making it a tremendous work light," said Walter Kaihatu, president of UK International.
However, instead of using the standard ENG drive unit, Canon has attached its remote control drive unit to these lenses, making them highly effective for POV-type camera operations and or robotic applications, including remote control over zoom, focus, and iris.
Winners and Finalists of The Zoom In Awards are invited to the Awards Ceremony, where they will have the opportunity to meet members of the past and present jury; film and television industry leaders; employers; agents; press; and their peers.
7-inch Widescreen display panel, easy-to-use Joystick, Smooth Zoom Control and Level Shot Control.
Zoom Systems is growing rapidly and expects to expand its service area to other convention centers soon," said Jeffrey Hytoff, regional location manager of Zoom Systems.
Who you know, and who knows you, is a large measure of how you are valued today in business," said Jonathan Stern, founder and CEO of Zoom Information Inc.