Zoom Lens

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Zoom Lens

A lens that allows a photographer to focus so that it appears that a picture is closer to or farther away from the viewer. The first zoom lens was developed by Frank Back and was introduced in 1959.
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In a (http://www.samsungsem.com/global/news/news/news/1510559_4630.jsp) press release , SEM explained that optical zoom is achieved by adjusting the distance, or focal length, between an image sensor and the corresponding lens.
As for the 10X zoom technology by Oppo, it's expected to work in a manner similar to the 5X optical zoom that the company showcased at MWC two years ago.
The 30x optical zoom allows users to capture high-quality, detailed images from great distances, and Wide Dynamic Range (WDR) functionality provides clear images even under backlit conditions.
The new range of travel zoom cameras comes with further enhanced optical zoom and image quality.
The Digital IXUS 110 IS offers the ultimate in wide shooting via a wide-angle zoom lens, wide-aspect LCD and widescreen HD movie shooting, while the Digital IXUS 990 IS delivers superior telephoto reach via a 5.0x optical zoom, and detailed image review with a 3.0" PureColor LCD II.
Available in high-resolution color with 22X optical zoom or day/night high-resolution color with 23X optical zoom, the cameras can be viewed and controlled via the Internet using a standard Web browser.
The projector's 1.7x optical zoom lens can display an 100-inch image on a screen from 9.8 feet away, and its 2:3 pull-down circuitry converts interlaced 480 and 575 video to progressive-scan imagery.
Boasting a swiveling lens like the ones in the popular Nikon Coolpix series, the SL300R has an image-processing chip dubbed "Rtune," which allows for up to 3.5 images to be recorded per second, a 3,170,000-pixel CCD knocking out images at a maximum resolution of 2,048 x 1,536 dots and video at a maximum of 640 x 480 dots, running at a not-too-jerky 15 frames per second; it also sports a 3x optical zoom. That's a lot of gadgety stuff in a very tiny package.
* Oppo F19, Oppo F19 Pro may have 10x Hybrid Optical Zoom
The COOLPIX A100 has an effective pixel count of 20.1 megapixels, and is equipped with a 5x optical zoom (10x when Dynamic Fine Zoom is used) NIKKOR lens that covers the wide-angle 26mm to telephoto 130mm (equivalents in 35mm 135 format) range of focal lengths, all in an extremely portable, slim body with a depth measuring approximately 19.8mm and a weight of approximately 119g.
The rear camera consists of a large circular camera opening that bulges out and acts as the optical zoom, and a huge flash.
"Both have a F2.4 aperture lens which delivers better low light photos, a 5x optical zoom, and a 2.7-inch LCD display.
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