- Analog photography
Analog photography is
photographymade by a progressively changing image medium; usually one based on chemical processes ( photographic film) or on electronic tubes ( TV). This was the dominant form of photography for much of its history, but is now being supplemented by digital photography.
As the term "" indicates,
lightis recorded as a linear chemical process or electric signal. This can be a reaction in a light-activated chemical compound, such as silver nitrateor silver iodide. In electronicsthis can also be a photoresistorbased on cadmium sulfide, germaniumor silicon. In this case the amount of electric currentthrough the device is dependent on the amount of light that shines on it.
*Glenn D. Considine, "Van Nostrand's Scientific Encyclopedia", Two-Volume Set, 9th Edition (Hoboken, NJ: Wiley, 2002)
*Peter M.B. Walker, "Chambers Technical Dictionary" (Edinburgh: Chambers 1999)
* [http://www.apug.org/forums/home.php Analog Photography Users Group] international community
Wikimedia Foundation. 2010.
Look at other dictionaries:
Analog — or analogueref|cwe may refer to: * (1): Analog signal, a variable signal continuous in both time and amplitude (as opposed to digital or discrete, e.g. analog wristwatch vs digital wristwatch) **Analog circuits, circuits which use analog signals… … Wikipedia
Photography — is the art, science 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… … Wikipedia
Photography and the law — A No Photography sign, commonly placed in properties where the owner objects to or it is illegal to take photographs (though in some jurisdictions, this is not a legal requirement). Photography tends to be protected by the law through copyright… … Wikipedia
Analog Heart — Infobox Album Name = Analog Heart Type = Studio Album Artist = David Cook Released = May 6, 2006 Recorded = Genre = Alternative rock Post grunge Length = 41:00 Label = N/A Self Released Independently Producer = David Cook Reviews = Last album =… … Wikipedia
Digital photography — Nikon D700 a 12.1 megapixel full frame DSLR … Wikipedia
Clipping (photography) — Example image exhibiting blown out highlights. Top: original image, bottom: blown out areas marked red In digital photography and digital video, clipping is a result of capturing or processing an image where the intensity in a certain area falls… … Wikipedia
Digital versus film photography — has been a topic of debate since the invention of digital cameras towards the end of the 20th Century. Both digital and film photography have advantages and drawbacks. 21st century photography is dominated by digital operation, but the… … Wikipedia
Infrared photography — Top: tree photographed in the near infrared range. Bottom: same tree in the visible part of the spectrum … Wikipedia
Color photography — Color film redirects here. For the motion picture equivalent, see Color motion picture film. A circa 1850 Hillotype photograph of a colored engraving. Long believed to be a complete fraud, recent testing found that Levi Hill s process did… … Wikipedia
History of photography — The first permanent photograph was an image produced in 1826 by the French inventor Joseph Nicéphore Niépce. … Wikipedia