What does a close-up do?

A picture that captures an image of the upper body or part of the body in a movie. This kind of picture allows the audience to see the facial expressions or some kind of body movements of the characters clearly. Sometimes I also shoot a certain part of the scene. The sight distance of the close shot is a little farther than that of the close shot. Some people shoot above the waist, and the upper body activities and facial expressions of the characters occupy a prominent position in the picture and become the main performance objects. In movies, close-ups are often used to emphasize the expressions and important actions of characters. The function of close-up is similar to that of close-up, that is, the sight distance is short, the visual effect is bright and strong, and the appearance, manner, clothing, instrument and so on of the characters can be described in detail.