Adjustment method of the mirror: The mirror can become slim if it is slightly tilted or raised, which is the key to adjustment. The flat mirror image is the same size as the real thing, and the concave mirror image will be slightly smaller than myself. Most mirrors in clothing stores are concave mirror, but the effect of "slimming" will not be exaggerated because of the tiny radian. In some shops, the angle of the mirror can be adjusted. According to the principle of light reflection and refraction, the proportion of the lower body increases obviously after the mirror is tilted, and the portrait leaning back lengthens the vertical viewing angle.
Generally, the mirror is placed at a slightly inclined angle with the wall, and the visual effect will be better.