Why a person's face looks strange in photos - scientists' answer

Researchers have explained why one's own face in a photograph often appears unfamiliar. Key factors include the mirror image to which a person becomes accustomed over years, natural facial asymmetry, camera optics, and the mere-exposure effect. To others, the photo looks natural.

Researchers have explained why one's own face in a photograph often seems strange and unfamiliar. The key factor is the mirror image: a person sees themselves in a mirror for years, where the image is reversed, and becomes accustomed to that version. The camera captures the face without reflection, making the photo unlike the familiar mirror image. Natural facial asymmetry also plays a role—one eye may be slightly higher than the other, and the corners of the mouth may differ in shape. In the mirror, these features appear reversed. Professor Nicholas Epley of the University of Chicago explains this through the mere-exposure effect: repeated perception of the same object makes it more familiar and pleasant. Valentina Cazzato from the University of Messina notes that even slight asymmetry makes the non-reversed image in a photo unfamiliar. Lighting, distance to the camera, and lens characteristics also affect perception. The mirror shows us in motion, while a photograph captures a single moment. To others, the face in the photo looks natural because they see it without mirror reversal.