What happens when two people take selfies and their faces widen?

1, near big and far small, can be directly seen.

2. It is the focal length of the lens. Nowadays, mobile phone lenses are basically wide-angle or even ultra-wide-angle, and the viewing angle is very large, so the photos taken will have lens distortion, the center will have a slight magnification effect, and the edges will have an outward stretching effect, so you will feel that your face is getting wider and fatter.

By the way, the composition and angle of the shot will also affect the whole photo, but most people don't understand it. Because this is what professional photographers pay attention to, the photos taken by photographers are very different from those taken by our mobile phones.