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Introduction

Lens and mounting of a large-format camera

Photography is the art, application and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. Photography is employed in many fields of science, manufacturing (e.g., photolithography), and business, as well as its more direct uses for art, film and video production, recreational purposes, hobby, and mass communication.

Typically, a lens is used to focus the light reflected or emitted from objects into a real image on the light-sensitive surface inside a camera during a timed exposure. With an electronic image sensor, this produces an electrical charge at each pixel, which is electronically processed and stored in a digital image file for subsequent display or processing. The result with photographic emulsion is an invisible latent image, which is later chemically "developed" into a visible image, either negative or positive depending on the purpose of the photographic material and the method of processing. A negative image on film is traditionally used to photographically create a positive image on a paper base, known as a print, either by using an enlarger or by contact printing.

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The Earth seen from Apollo 17
The Blue Marble is a famous photograph of the Earth taken on 7 December 1972 by the crew of the Apollo 17 spacecraft at a distance of about 45,000 kilometers or about 28,000 miles. It is one of the most widely distributed photographic images in existence. The image is one of the few to show a fully lit Earth, as the astronauts had the Sun behind them when they took the image. To the astronauts, who were 28,000 miles distant, Earth had the appearance of a child's glass marble (hence the name).

Selected biography

Edgar de Evia
Edgar Domingo Evia y Joutard, known professionally as Edgar de Evia (July 30, 1910 – February 10, 2003), was a Mexican-born American photographer and author.

In a career that spanned the 1940s through the 1990s, his photography appeared in magazines and newspapers such as Town & Country, House & Garden, Look and The New York Times and advertising campaigns for General Motors, Borden Ice Cream, Owens-Corning Fiberglas Corporation, Jell-O, Revlon, among other corporations.

Did you know

  • ...that the inventors of Kodachrome, Leopold Mannes and Leopold Godowsky, Jr. were both accomplished musicians?

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Photography Topics

Concepts and Principles Photography forms Photography techniques
Camera and photography equipment Miscellaneous Photographers and photographs

Categories

Genres of photography Aerial photography | Astrophotography | Aviation photography | Candid photography | Chronophotography | Color photography | Commercial photography | Computational photography (artistic) | Digiscoping | Fashion photography | Fine art photography | Glamour photography | Infrared photography | Kirlian photography | Kite aerial photography | Macro photography | Nature photography | New Topography | Night photography | Non-nude photography | Panoramic photography | Portrait photography | Post-mortem photography | Rollout photography | Secret photography | Still life photography | Stock photography | Straight photography | Street photography | Strip aerial photography | Subminiature photography | Ultraviolet photography | Underwater photography | Vernacular photography | War photography | Wedding photography | Wildlife photography
Photographic techniques Afocal photography | Airbrush | Background light | Backlighting (lighting design) | Bracketing | Burned (image) | Chemography | Color correction | Composograph | Contre-jour | Deep focus | Double exposure | Dutch angle | Exposure compensation | Fill flash | Fill light | Framing | Hand-colouring | Harris Shutter | High dynamic range imaging | High-key lighting | Infinity cove | Kallitype | Key light | Kite aerial photography | Lenticular printing | Light painting | Manual focus | Multiple exposure | Perspective correction | Photo manipulation | Photogram | Photographic print toning | Push printing | Push processing | Rephotography | Rule of thirds | Sandwich printing | Shallow focus | Simplicity | Slit-scan photography | Stereoscopy | Stopping down | Sunny 16 rule | Three-point lighting | Tinted photograph | Zone System
Photographers Fictional photographers | Magnum photographers | Photographers by nationality | Photojournalists | Pioneers of photography | Photographic studios | Photographers by subject | Photographers who committed suicide | Stock photographers | Photographer stubs | Women photographers

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