Motion Capture

Blurriness on film is due to excessive moment of a subject or camera. When the shutter is open for the split-second of time, that exact moment is recorded on the film. If the camera is being moved, or if the subject moves quickly in this split-second, a blur is recorded. Blurriness can be confined to the subject, or the whole photo. Also, by extending the exposure time on a digital camera, more movement (blur) can be captured. Usually this can be adjusted on a menu screen or mode on digital cameras.

Stopped action is when the shutter time is short or "fast" enough to reduce or completely leave out blurring in a motion. A shutter time of 1/250th of a second will be "faster" then shutter time of 1/60th of a second. Again, this can be adjusted using a menu screen or mode, usually under 'exposure time' or a similar setting. The photos produced show a more exact moment in time, midway through a motion.

Panning is when a camera is moved on a fixed point either horizontally or vertically. Usually the camera {video or 'regular'} is attached on a tripod for stability. Panning in this sense can then be used as a way to blur the background of a frame, but not the subject. An example would be with race cars on a track: As a car goes by, the camera pans with the car to keep it in focus while the car whips by. When used correctly, the car will be focused {relative to the background}, and the background will be blurred out.

An example of panning {http://en.wikipedia.org/wiki/Panning_%28camera%29}: