What is optical zoom 3 x 18-55mm?

Optical zoom refers to the ability of a camera lens to magnify a subject by changing the focal length, allowing for closer shots without losing image quality. In the case of a lens labeled 3x 18-55mm, it indicates that the lens can zoom in from a wide-angle of 18mm to a telephoto of 55mm, providing a 3x magnification range. This means you can capture subjects from a distance while maintaining clarity and detail, ideal for various Photography situations.