The digital zoom (zoom) is a part of the picture that has been taken to enlarge, that is to say, the bigger the picture is, the less clear it is. Optical zoom (zoom) is in the actual scene, to enlarge a place, (similar to using a telescope to see the scene). No matter how big it is, it will be clear. Therefore, optical zoom is the most important. But the greater the optical zoom multiplier, the higher the price of the camera.
