Why do you look three times fatter on camera?

Because the lens is horizontal, a horizontal lens will make people look fat.

Shooting or shooting distance is too close, and the deformation is large. This deformation is usually fat according to the characteristics of electron optics. And everyone's thinking about portrait pictures is mainly close-ups. This kind of camera lens often has insufficient lens spacing.

Photography or camera shooting is too close, resulting in large deformation. According to optical characteristics, this deformation is often fat. People's examination of portraits is mainly close-ups, often taken at close range.