Light painting, also known as light drawing is a photographic technique in which exposures are made usually at night or in a darkened room by moving a light source or by moving the camera.
The light can either be used to selectively illuminate parts of the subject or to "paint" a picture by shining it directly into the camera lens. Light painting requires a sufficiently slow shutter speed, usually a second or more. Like night photography, it has grown in popularity since the advent of digital cameras because it allows photographers to see the results of their work immediately.
Light painting can take on the characteristics of Tableaux Vivant or a quick pencil sketch. Pablo Picasso was photographed in 1924 doing a quick sketch in the air.
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