en>Yobot: WP:CHECKWIKI error fixes using AWB (9751)

2013-12-02T10:10:01Z

WP:CHECKWIKI error fixes using AWB (9751)

← Older revision		Revision as of 12:10, 2 December 2013
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	~~Let me initial start by introducing myself~~. ~~My title~~ is ~~Boyd Butts although~~ it is not the ~~title on my beginning certification~~. ~~Hiring is my occupation~~. ~~Body building is one~~ of the ~~things I adore most~~. ~~My family members lives~~ in ~~Minnesota~~ and ~~my family loves~~ it.~~<br><br>Feel free~~ to ~~visit my weblog ::~~ [http://www.~~escuelavirtual~~.~~registraduria.gov.co~~/~~user~~/~~view.php?id=140944&course=1 at home std test~~]		{{Unreferenced\|date=November 2008}}

			In [[photography]], '''exposure range''' may refer to any of several types of [[dynamic range]]:
			* The ''[[Film speed\|Light sensitivity range]]'' of photographic film, paper, or digital camera sensors.
			* The ''luminosity range'' of a scene being photographed.
			* The ''opacity range'' of developed film images
			* The ''reflectance range'' of images on photographic papers.

			The exposure range of a device is usually expressed in '''stops''', which are equivalent to <math>\log_{2} (c)</math> where ''c'' is the medium or device's [[contrast ratio]]. For example, average [[DV\|Digital Video (DV)]] has a contrast ratio of 45:1, so its exposure range is roughly 5.5 stops. [[Film]] has an exposure range of approximately 14 stops, currently the highest in motion picture mediums.

			Exposure is usually controlled by changing the lens aperture (the amount of light it gathers), the shutter speed (how long light is gathered) or sensitivity (how strongly the film or sensor responds to light). Changing exposure does not change the exposure range.

			[[Image:HDR example - exposure.jpeg\|thumb\|600px\|center\|Three exposures of the same image at different exposure levels. Note that some details present in the darkest image are not present in the lightest image, and vice versa.]]

			A [[graduated neutral density filter]] can be also used to improve the reproduction of the exposure range of the scene, by darkening bright parts of the image. A graduated filter will reduce the extreme highlights of an image, such as a clear, open sky as well as sunlight. The filter is usually an even gradation of neutral gray to clear, covering the top third to half of the filter in gray. Therefore, it mostly affects the top third to half of the frame's exposure, leaving the highlights in the bottom half to two-thirds unaffected. Often these filters are the square gelatin, [[polycarbonate]], or glass type. A mounting kit such as a square frame receptacle mounted to interchangeable screw-in rings will hold the filter at an appropriate orientation. These can be mounted to the end of an SLR lens camera in the same fashion as a polarizing lens, UV filter, and various other screw-in type filters for SLR and DSLR cameras.

			== See also ==
			* [[Exposure latitude]]
			* [[High dynamic range imaging]]

			== External links ==
			* [http://www.dpreview.com/glossary/digital-imaging/dynamic-range Dynamic Range of Sensors]

			[[Category:Science of photography]]


			{{photography-stub}}

en>Qetuth: more specific stub type

2011-12-21T15:46:25Z

more specific stub type

New page

Let me initial start by introducing myself. My title is Boyd Butts although it is not the title on my beginning certification. Hiring is my occupation. Body building is one of the things I adore most. My family members lives in Minnesota and my family loves it.<br><br>Feel free to visit my weblog :: [http://www.escuelavirtual.registraduria.gov.co/user/view.php?id=140944&course=1 at home std test]

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en>Yobot: WP:CHECKWIKI error fixes using AWB (9751)

en>Qetuth: more specific stub type