Cinematography involves capturing film images and aligning them to create a strip that makes up a film. There are various techniques used in cinematography, such as different color filters that can give a movie a unique tinted look. The film stock must be chosen before production begins because it cannot be changed once recording starts. Cinematography uses negative film that develops positively, with white appearing white and black appearing black. It involves lensed photography so the camera must always be in focus. However, this results in better quality video. Cinematography allows movement within scenes to be shown and the camera to move, providing different angles to enhance the movie and create a more complex finished piece.