1. The focal length of the lens brings different spatial perspective, thus affecting the effect of portrait photos.
It can be clearly seen from the photos that the model's face is "narrow" at the wide-angle end, while the prominent parts such as forehead, nose and chin are relatively large, while the model's face is more "flat" at the telephoto end, and the above parts are not so prominent.
So 85mm- 135mm is the golden focal length of portrait close-up, because it has the most suitable spatial perspective. However, when holding a camera in a photo or in front of a mirror, the face on the screen usually has a focal length of 35mm (28-50).
2. Another reason is the frozen face effect.
Recent psychological research has found that people generally think that a person's video will look more beautiful than a screenshot of the video. Call it the "frozen face effect".
Maybe those friends who are desperate for their photos can feel a little comfort. Psychologists at the University of California and Harvard University have found that people think that people in videos look better than screenshots of the same video. In other words, even if you think you look miserable in the holiday photos, don't worry, others will think that the real person who moves looks much better.
Robert bost of the University of California, Davis and his team call this phenomenon that static faces are not as attractive as dynamic faces "frozen face effect".
This may be related to the way the impression of dynamic face is formed. People will average the same face in different positions and different sides. This is consistent with the previous study that "the average face is more attractive". Another possibility is that "dynamic faces better activate the neural mechanism of facial recognition". After all, the camera was invented not long ago, and the brain's face recognition system was originally evolved to deal with dynamic faces, not static faces.
Bost and his colleagues asked participants to rate 2-second videos and 65,438+0,200 still pictures cut from these videos, and to evaluate how beautiful the 20 people in the videos or pictures were. It turns out that the score of the same face in the video is higher than that in the still picture.
The experiment attempts to further explore the deep mechanism of this effect. This effect also exists when videos and pictures are viewed upside down. Researchers believe that this is not because the video contains more information: comparing the video with a group of still pictures taken from the same video, the video finally won more praise. Memory will not be an influencing factor, and good-looking portraits will not be much easier to remember than ordinary ones. However, the researchers found that in order to be considered more attractive, those videos need to be played in order. Video with chaotic frames does not score higher than static pictures.
The frozen face effect can explain why facial photography is so difficult to master and why people often think that real people are more beautiful than cameras.