Example Concept: Depth of field is the range within a shot that appears acceptably sharp, and it can be manipulated by adjusting the aperture, focal length, and camera-to-subject distance. A shallow depth of field isolates subjects by blurring the background, drawing focus to key characters or objects, and creating an intimate or dramatic effect. Conversely, a deep depth of field keeps more of the scene in focus, which is useful for establishing shots or scenes where the environment is as important as the characters.