Wireless Painting Lights

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Light painting, or light drawing, is a photographic technique in which exposures are made by moving a hand-held light source while taking a long exposure photograph, either to illuminate a subject or to shine a point of light directly at the camera, or by moving the camera itself during exposure. The technique is used for both scientific and artistic purposes, as well as in commercial photography. Light painting has long inspired photographers with the technique capturing a moving light source whilst taking a long exposure photograph which is difficult to perfect but can produce exciting results.


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History

Light painting (also called light drawing) dates back to 1889 when √Čtienne-Jules Marey and Georges Demeny traced human motion in the first known light painting "Pathological Walk From in Front". The technique was used in Frank Gilbreth's work with his wife Lillian Moller Gilbreth in 1914, when the pair used small lights and the open shutter of a camera to track the motion of manufacturing and clerical workers. Man Ray, in his 1935 series "Space Writing," was the first known art photographer to use the technique. Photographer Barbara Morgan began making light paintings in 1940.

In 1949 Pablo Picasso was visited by Gjon Mili, a photographer and lighting innovator, who introduced Picasso to his photographs of ice skaters with lights attached to their skates. Immediately Picasso started making images in the air with a small flashlight in a dark room. This series of photos became known as Picasso's "light drawings." Of these photos, the most celebrated and famous is known as "Picasso draws a Centaur" Peter Keetman (1916-2005), who studied photography in Munich from 1935 to 1937, was the 1949 co-founder of FotoForm (together with Otto Steinert, Toni Schneiders et al.), a group with great impact on the new photography in the 50s and 60s in Germany and abroad. He produced a series Schwingungsfigur (oscillating figures) of complex linear meshes, often with moiré effects, using a point-source light on a pendulum.

During the 1970s and 80's Eric Staller used this technology for numerous photo projects that were called "Light Drawings". Light paintings up to 1976 are classified as light drawings. In 1977 Dean Chamberlain gave birth to light painting (using handheld lights to selectively illuminate and/or color parts of the subject or scene) with his image "Polyethylene Bags On Chaise Longue" at The Rochester Institute of Technology. Dean Chamberlain was the first artist to dedicate his entire body of work to the light painting art form. The artist photographer Jacques Pugin made several series of images with the light drawing technique in 1979. Picasso and Mili's images should be regarded as some of the first light drawings. Now, with modern light painting, one uses more frequently choreography and performance to photograph and organize.

In the 1970s and early 1980s, Steve Mann invented, designed, built, and used various wearable computers to visualize real-world phenomena such as sound waves, radio waves, and sight fields by light painting using computational photography.

Since the 1980s, Vicki DaSilva has been working exclusively in light painting and light graffiti. In 1980, Vicki DaSilva started making deliberate text light graffiti works, the first being "Cash". She continued these light graffiti photographs throughout the 1980s and eventually started using 4 foot fluorescent bulbs hooked up to pulley systems to create sheets of light. In the early 2000s she began making work with 8 foot fluorescent lamps, holding the lamp vertically and walking through spaces with it.

This artform enjoyed a surge in popularity in the 21st century, partly due to the increasing availability of dSLR cameras, advances in portable light sources such as LEDs, and also in part due to the advent of media sharing websites by which practitioners can exchange images and ideas.


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Techniques

Light painting using handheld lights to selectively illuminate or colour parts of the subject or scene or to evenly light large architectural interiors has been used in professional photography since the 1930s as described by Leslie Walker and Ansel Adams. Light painting requires a slow shutter speed, usually at least a second in duration. Light painting can imitate characteristics of traditional painting; superimposition and transparency can easily be achieved by moving, adding or removing lights or subjects during or between exposures.

Projector light painting, by waving a white translucent flash diffuser in the light path of a portable projector, the continuous motion creates a invisible screen in air for the projected image in the photo.

Light paintings can be created using a webcam. The painted image can already be seen while drawing by using a monitor or projector. Another technique is the projection of images on to irregular surfaces (such as faces or buildings), in effect "painting" them with light. A photograph or other fixed portrayal of the resulting image is then made.

Kinetic light painting is achieved by moving the camera, and is the antithesis of traditional photography. At night, or in a dark room, the camera can be removed from the tripod and used like a paintbrush. An example is using the night sky as the canvas, the camera as the brush and artificially-lit cityscapes as the palette. Putting energy into moving the camera by stroking lights, making patterns and laying down backgrounds can create abstract artistic images.


Picture Lighting & Art Lights, LED | Bellacor
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Equipment

A variety of light sources can be used, ranging from simple flashlights to dedicated devices like the Hosemaster, which uses a fiber optic light pen. Other sources of light including candles, matches, fireworks, lighter flints, glowsticks, and Poi are also popular.

The PixelStick offer users the ability to control their light source in order to create images from letters to pictures that they have imported.

A tripod is usually necessary due to the long exposure times involved. Alternatively, the camera may be placed on or braced against a table or other solid support. A shutter release cable or self timer is generally employed in order to minimize camera shake. Color gels can also be used to color the light sources.

Some light painters make their own dedicated devices to create light trails over the photo background; this can include computer-controlled devices. This Arduino controlled LED array can render images that could not be made by drawing in the air with a single light source alone.


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Important artists

Source of the article : Wikipedia



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