The document discusses different camera techniques used in the "Life on Mars" film extract. It explains that a deep focus is used when the entire scene is in focus, while a shallow focus blurs the background to focus only on a character. Framing sets the scene by placing characters in different locations. A focus pull changes the focus between subjects, like from the background to foreground. In the first scene, both deep and shallow focus are used. Framing sets scenes when the character is running between doors and in a building with a dead body. A focus pull changes the focus between a man messing with the character and another scene.