Traditional Culture Encyclopedia - Photography and portraiture - Why do the photos taken in the photo studio look so fat?

Why do the photos taken in the photo studio look so fat?

Probably too close, taken with a wide angle, but the edge of the wide-angle lens is distorted again, so it seems to be widened and deformed; It is also possible to use a hard flash to make the characters very "flat", and not use shadows to reflect the three-dimensional sense, which will make them look fat. The mistakes in the selection of equipment and light cannot be said to be the photographer's own technical problems.