Photographic perspective distortion

Because many softwares are stretched when calling the camera.

If you want to make your face thinner, you can put the lens higher and shoot from a higher angle when you try the video. In addition, pay attention to the subtle differences between people's left and right faces (the side used to chewing will be muscular), and put the thinner face at the back of the picture, so the effect will be better.

Photographic distortion usually mainly refers to barrel or pillow distortion, that is, linear distortion of lens. For example, wide-angle lenses often have straight edges that bend outward, which is barrel distortion. Strictly speaking, there is a deviation between the photo and the actual scene, which is called distortion. Lens distortion is actually the general term for the inherent perspective distortion of optical lenses, that is, the distortion caused by perspective, which is very unfavorable to the image quality of photos. After all, the purpose of photography is reproduction, not exaggeration, but because this is the inherent characteristic of the lens, it cannot be eliminated and can only be improved.