How to shoot the scene in the middle of the classroom

Take a movie photo of the character above the knee. The sight distance is a little farther than the close shot, which can provide actors with more room for activities, not only let the audience see the expressions of the characters clearly, but also help to express the body movements of the characters. The so-called movie picture refers to a film with visual image that can express a certain meaning and can be combined with the upper and lower lens pictures without being interrupted by the camera.