Photography is the process of making pictures by means of the action of light. Light patterns reflected or emitted from objects are recorded onto a sensitive medium or storage chip through a timed exposure. The process is done through mechanical, chemical or digital devices known as cameras.

The word comes from the Greek words φως phos ("light"), and γραφις graphis ("stylus", "paintbrush") or γραφη graphê, together meaning "drawing with light" or "representation by means of lines" or "drawing." Traditionally the product of photography has been called a photograph. The term photo is an abbreviation; many people also call them pictures. In digital photography, the term image has begun to replace photograph. (The term image is traditional in geometric optics.)

Photographic image-forming devices

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Most commonly a camera or camera obscura is the image forming device and photographic film or a digital storage card is the recording medium, although other methods are available. For instance, the photocopy or xerography machine forms permanent images but uses the transfer of static electrical charges rather than photographic film, hence the term electrophotography. The rayographs published by Man Ray in 1922 are images produced by the shadows of objects cast on the photographic paper, without the use of a camera. Objects can be placed directly on the glass of a scanner to produce pictures digitally.

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From My Blog: #photography #photog #yegphoto Of Oilers and a girl in a shirt http://tinyurl.com/ydj2eo9
cptpoland (Mac Sokulski) Mon, 21 Dec 2009 15:11:20 -0000
From My Blog: #photography #photog #yegphoto Of Oilers and a girl in a shirt http://tinyurl.com/ydj2eo9
Digital Printing – Color Space and Color Management | The Photo Argus - A Photographer's Resource http://ow.ly/NW8d #photography
photosil (Silvia Ganora) Mon, 21 Dec 2009 15:11:19 -0000
Digital Printing – Color Space and Color Management | The Photo Argus - A Photographer's Resource http://ow.ly/NW8d #photography
Amazing Vanishing Point Photography http://abduzeedo.com/amazing-vanishing-point-photography
filipstrand (Filip Strand) Mon, 21 Dec 2009 15:11:14 -0000
Amazing Vanishing Point Photography http://abduzeedo.com/amazing-vanishing-point-photography
RT @lowlightphoto: Free GIMP Tutorials - LoveToKnow Photography: Taking advantage of user-developed techniques and tricks that imp.. htt ...
tomrotger (Tomás Rotger) Mon, 21 Dec 2009 15:11:01 -0000
RT @lowlightphoto: Free GIMP Tutorials - LoveToKnow Photography: Taking advantage of user-developed techniques and tricks that imp.. htt ...
#photography #linux Merry Christmas: digiKam 1.0.0 is there... http://is.gd/5wecd Thanks Gilles and all the digiKam team!
cmuller13 (Christophe Muller) Mon, 21 Dec 2009 15:10:53 -0000
#photography #linux Merry Christmas: digiKam 1.0.0 is there... http://is.gd/5wecd Thanks Gilles and all the digiKam team!
Majestic Skies Created by Powerful Storms http://bit.ly/667b1S (via @suthisak) | #Photography
anddjournal (Aditya) Mon, 21 Dec 2009 15:10:34 -0000
Majestic Skies Created by Powerful Storms http://bit.ly/667b1S (via @suthisak) | #Photography

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