Modern smartphone cameras are powerful tools, but to get clean, high-quality results, you should know how to use them properly.
Optical Vs. Digital Zoom
To zoom correctly, first you should understand the types of zoom on your smartphone camera. There are two types of zoom: optical and digital.
As the name implies, the optical zoom is where different elements inside the lens move to magnify the scene and project it onto the image sensor. This is similar to what happens with the long, telephoto lenses on the camera .
Since the movement of lens elements controls the zooming, there is no quality loss with optical zooming. The camera's sensor records the information in full resolution. So even if you observe your file at 100% resolution, the image will be completely sharp.
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