To compensate for this, manufacturers have created algorithms which artificially enhance the image to make it look better, also known as upscaling. What is digital zoom?ĭigital zooming is when a camera continues to pull closer to an image despite surpassing the maximum focal length of its longest lens.ĭigital zooming is essentially cropping the margins of your photo and enlarging the image to fill the frame, making it look like the camera zoomed in. Sign up to our tech newsletter to get news, reviews and advice on the latest tech you can buy. But while digital zoom can be a nifty way to create a magnified picture without needing a specialist lens, it also creates irreversible quality loss.Īnybody buying a mobile phone or fixed-lens camera, such as a compact camera or a bridge model, should be wary of this. Much of a phone's zooming potential is usually digital. Phone camera lenses can't extend like digital cameras do, so instead you will have two, three or even four lenses with different focal lengths built into the phone to create different levels of optical zoom. Mobile phones, which now come with lots of cameras in small clusters, employ both types of zooming in their native camera app.
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