camera moves alongside or parallel to its subject. Traditionally tracking shots are filmed while the camera is mounted on a track dolly and rolled on dedicated tracks comparable to railroad tracks, In recent years, however, parallel camera moves performed with a Steadicam, gimbal, etc. may also be called a tracking shot. Tracking shots often "follow" a subject while it is in motion: for instance, a person walking on a sidewalk seen from the perspective of somebody walking on a parallel path several feet away. Shots taken from moving vehicles that run parallel to another moving object are also referred to as tracking or traveling shots. A tracking shot may also be curved, moving around its subject in a semi-circular rotation, known specifically as an arc or arc shot. Truck Truck-right, truck-left, truck-in, truck-out (see Dolly shot) Two shot A shot in which the frame encompasses two people, typically but not exclusively a medium shot. Whip pan A type of pan shot in which the camera pans so quickly that the resulting image is badly blurred. It is sometimes used as an editorial transition and is also known as a swish pan or "flash pan." Whip zoom An unusually quick but continuous zoom in or out. Wipe An optical editorial transition in which an image appears to be pushed or "wiped" to one aside of the screen to make way for the next. Zoom A shot taken from a stationary position using a special zoom lens that magnifies or de-magnifies the center of the image. This creates an illusion that the camera is moving toward or away from its subject by making the subject more or less prominent in the frame. Not to be confused with dollying in which the camera itself actually physically moves closer to or further away from its subject. Cinematography Movement and expression Movement can be used extensively by film makers to make meaning. It is how a scene is put together to produce an image. A famous example of this, which uses "dance" extensively to communicate meaning and emotion, is the film, West Side Story. Provided in this alphabetised list of film techniques used in motion picture filmmaking. There are a variety of expressions: Aerial perspective Aerial shot American shot Angle of view Bird's eye shot Bird's-eye view Boom shot B-roll Camera angle Camera coverage Camera dolly Camera operator Camera tracking Close-up Crane shot Dolly zoom