Optical Zoom - definition

An optical zoom is a mechanical act done by the camera lens. There are two kinds of zoom we can use during the time of capturing an image which is: Optical zoom and Digital zoom. In digital zoom, the photo gets enlarged using the device’s internal software or algorithm but in the optical zoom feature, the lens goes a little bit front or come back and that’s how it adjusts its position.

Things should be kept in mind that, in the optical zoom, the quality and sharpness of the photos remain the same but in digital zoom, the resolution changes and reduces the sharpness and overall picture quality.