J+Williams

__[|Jasmine Williams]__

Digital Zoom- [|Home] > digital zoom
 * Digital zoom **

** __Digital zoom__ is a software based method of approximating a telephoto lens on a camera. This is done through systems such as pixel doubling that merely make each pixel in an image larger to increase the size of the intended subject. Such systems are roughly equivalent to using photo editing software such as Adobe Photoshop to achieve the same result. ** ** __Digital__ [|zoom] is a function of a [|digital camera] used to make the image seem more close-up. Digital zoom on a digital camera works the same as [|cropping] and enlarging a photo in a [|graphics] program (source: [] )** **When digital zoom is in effect, [|**Manual Focus**] is not available, and the center [|**focus area**] is used for auto focusing. ** **In actual fact the pixel on the centre portion of the image sensor is "duplicated" digitally. This process is called interpolation. All these "enlarging", "zooming" and cropping of the the digital zoom or "faked zoom" practically crops and throws image information away when you use it. No image details are added to your enlarged image unlike the actual optical zoom. Images are done digitally instead of actually zooming with an actual lens and hence called [|digital zoom]. **
 * Zoom is a feature of many cameras and camera phones that make the subject appear "closer", filling more of the image area.The other type of zoom is optical zoom, which uses moving lenses for maximum quality. Unlike digital zoom, optical zoom has no trade-offs in quality or image size. **

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