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About Optical Zoom
Optical Zoom is the zoom-feature that is found in most cameras and phone cameras that causes subjects to seem closer than they really are (so they fill a greater amount of the picture zone). To make that magnification impact cameras use a lot of moving optical focal points – thus the name “optical zoom”.
Another option to optical zoom is the digital zoom, which is a profoundly feature on numerous buyer gadgets furnished with a camera, however it doesn’t offer many advantages.