What is a close-up? Combined with the works, its function is analyzed.

Close-up shot refers to a shot that magnifies the subject on the screen by a large proportion when shooting. Usually close-ups will highlight the details of the subject, allowing the audience to observe and feel the emotions and expressions of the subject more deeply. Close-ups are widely used in movies, TV series, documentaries and advertisements. Its functions are as follows: 1. Highlight emotions and expressions: Through close-ups, the audience can see the tiny expressions and eye changes of the characters, so as to better understand their emotions and inner world. For example, in the movie "The Shawshank Redemption", Andy's smile and eyes are all displayed through close-ups, expressing his tenacity and optimism. 2. Emphasize actions and details: Close-ups can focus the audience's attention on the actions and details of the subject, so that the audience can pay more attention to and experience the emotions brought by these details. For example, in the movie Dream Journey, close-ups are used to show the movements of the protagonist's fingers when playing the guitar, so that the audience can feel the power and emotion brought by music. 3. Express the theme and image: Close-ups can also be used to express the theme and image of movies or works. By enlarging a detail or object, close-up can arouse the audience's emotion and deepen the understanding of the theme. For example, in the movie Zootopia, the eyes and ears of the protagonist Judy Rabbit are displayed through close-ups, which highlights her stubborn and optimistic personality. In short, the close-up shot has a unique form of expression in film and television works. By enlarging the details of the subject matter, conveying emotions and expressing the theme, the audience's sense of participation and emotion can be improved.