I found that my face looked particularly fat when taking pictures. Why?

There are two main reasons.

One is that the focal length of the lens is too long (for example, using a SLR plus a telephoto lens), the angle of view is too small, and the space compression is severe, making the face look distorted. wider.

Another reason may be the lighting. For example, the dark parts are also reflective and not weak, causing the bones inside the head not to protrude enough and the entire face to feel swollen. For example, this is often done in a lot of poor wedding photography. . .