Motion

Motion is defined as the capturing of a moving obect within a photograph. This technique is generally captured spontaneously and thus has a very realistic effect.

Importance. Understanding how to photograph motion is crucial for capturing the image of an event that quickly passes, such as a play in a sporting event or simply the swiftness of two kids playing tag (see Catch Me If You Can, left). Being able to document the hype of a fast-paced event allows the photographer to visually express the emotion felt by the subject(s) in any particular circumstance, therefore making permanent the excitement or "rush" of that moment. In addition, motion photography can benefit the picture of any event, even when the movement is minimal (see A Stroll Through the Mosque, right). Despite the fact that people walking would usually seem to be bland subject matter, the blur of two people strolling through the photo on the right give it an added sense of interest.

Method. The camera's shutter speed is the most important element in successfully capturing motion. If set to a slow speed, the image will appear blurred. If fast, it will appear as if the image is frozen in time. The key is to make the subject appear focused and the background appear blurred in order to create a true sense of motion (or oftentimes the opposite, as long as part of the photo is focused and the other is blurred). There are two ways to capture movement in photographs: the camera is kept still while the subject moves, or the camera moves while the subject is stationary. The former is more common, and often requires a tripod to avoid excess blur. If the subject is moving toward or away from the photographer, there will be less blur than if the subject is moving side to side. This is because the image crosses fewer pixels during the exposure time, therefore leaving less opportunity for distortion of the moving image. Different effect can be achieved by taking advantage of this and shooting from various angles.