How to know what you look like

What the mirror forms is a virtual image of equal size upright. The meaning of "standing upright and equal in size" is very obvious.

There are many factors that affect the photos taken by the camera. The real image that is gathered through the lens (not a macro lens) is like an upside-down, left-right, and shrunken real image. For example, the sense of perspective of a wide-angle lens is too strong, while the sense of perspective of a telephoto lens is too weak, so the photos you take with the former will have exaggerated "big noses", "big pie faces", "long legs" and other phenomena; and then The person photographed is more like a piece of paper, lacking a three-dimensional sense. These are all examples of being “cheated” by the camera.

In addition, the optical quality of the lens itself also has a great impact. One of the various aberrations of the lens is called "distortion", which is divided into pincushion distortion and barrel distortion. As the name suggests, the specific effect is that the four corners of the scene are "too sharp" and "too round". Distortion can cause distortion to a large extent.

Furthermore, when you look in the mirror, what you see is actually a scene in a 3D space that is close to the real world, and the picture has a very full three-dimensional feel. The photos taken by the camera must be viewed on the computer after all. They reproduce the 3D scene in the 2D space, so there is bound to be some distortion. For example, the sense of space is weakened, the color reproduction is different, the sharpness of the photo is deteriorated, etc.

If you want to show the most beautiful side in your photos, unless you find a very experienced portrait photographer, he can help you realize your wish.

That’s basically it, good luck!