Optical Zoom

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Clarification: Optical zoom is a camera’s feature to help magnify a photo by changing the focal length of a zoom lens physically.

Optical zoom is a very useful way to magnifying a photo because it won’t make negative changes toward the image quality. In this aspect, the optical zoom is different for a digital zoom. Actually, in a digital camera, I highly recommend you to pay attention to the optical zoom measurement, other than the digital zoom numbers.

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