Digital zoom is a feature offered on most digital cameras. From it’s name you’d naturally expect that digital zoom does the same thing as an optical zoom lens - that is, make faraway objects appear closer and larger in the frame.
In truth though digital zoom is simply a software process that enlarges the existing image and then crops away the perimeter. You get exactly the same results as if you had done this enlarging and cropping in a photo editing program. Enlarging a digital photo can reduce the photo quality, which is why I recommend turning off digital zoom.
Digital zoom also does not affect depth of field - the zone of sharp focus like a real zoom lens.
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