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*Date: [http://www.wikipedia.org/wiki/17th_Century 1605]]
==Definitions==
*1 : the [[fact]] or condition of being exposed: as a : the condition of [[being]] presented to [[view]] or made known <a [[politician]] seeks a lot of exposure>
:b : the condition of [[being]] unprotected especially from severe [[weather]] <died of exposure>
:c : the condition of [[being]] subject to some [[effect]] or [[influence]] <risk exposure to the flu>
:d : the condition of being at [[risk]] of [[financial]] loss <minimizes your exposure to market fluctuations>; also : an amount at risk
*2 : the [[act]] or an instance of exposing: as a : disclosure of something [[secret]] <tried to prevent exposure of their [[past]]>
:b : the treating of [[sensitized]] [[material]] (as film) to controlled amounts of radiant [[energy]]; also : the amount of such energy or length of such treatment <a 3-second exposure>
*3 a : the [[manner]] of being exposed
:b : the position (as of a house) with respect to weather [[influences]] or compass points <a room with a southern exposure>
*4 : a piece or section of [[sensitized]] [[material]] (as film) on which an exposure is or can be made <36 exposures per roll>
==Description==
In photography, '''exposure''' is the [[total]] amount of [[light]] allowed to fall on the photographic [[medium]] ([http://en.wikipedia.org/wiki/Photographic_film photographic film] or image sensor) during the [[process]] of taking a photograph. Exposure is [[measured]] in [http://en.wikipedia.org/wiki/Lux lux] seconds, and can be computed from [http://en.wikipedia.org/wiki/Exposure_value exposure value] (EV) and scene [http://en.wikipedia.org/wiki/Luminance luminance] over a specified area.
In photographic jargon, an exposure generally refers to a single [http://en.wikipedia.org/wiki/Shutter_cycle shutter cycle]. For example: a long exposure refers to a single, protracted shutter [[cycle]] to capture enough low-[[intensity]] [[light]], whereas a multiple exposure involves a series of [[relatively]] brief shutter cycles; effectively layering a series of photographs in one image. For the same [http://en.wikipedia.org/wiki/Film_speed film speed], the accumulated photometric exposure (H) should be similar in both cases.[http://en.wikipedia.org/wiki/Exposure_%28photography%29]
[[Category: Photography]]
*Date: [http://www.wikipedia.org/wiki/17th_Century 1605]]
==Definitions==
*1 : the [[fact]] or condition of being exposed: as a : the condition of [[being]] presented to [[view]] or made known <a [[politician]] seeks a lot of exposure>
:b : the condition of [[being]] unprotected especially from severe [[weather]] <died of exposure>
:c : the condition of [[being]] subject to some [[effect]] or [[influence]] <risk exposure to the flu>
:d : the condition of being at [[risk]] of [[financial]] loss <minimizes your exposure to market fluctuations>; also : an amount at risk
*2 : the [[act]] or an instance of exposing: as a : disclosure of something [[secret]] <tried to prevent exposure of their [[past]]>
:b : the treating of [[sensitized]] [[material]] (as film) to controlled amounts of radiant [[energy]]; also : the amount of such energy or length of such treatment <a 3-second exposure>
*3 a : the [[manner]] of being exposed
:b : the position (as of a house) with respect to weather [[influences]] or compass points <a room with a southern exposure>
*4 : a piece or section of [[sensitized]] [[material]] (as film) on which an exposure is or can be made <36 exposures per roll>
==Description==
In photography, '''exposure''' is the [[total]] amount of [[light]] allowed to fall on the photographic [[medium]] ([http://en.wikipedia.org/wiki/Photographic_film photographic film] or image sensor) during the [[process]] of taking a photograph. Exposure is [[measured]] in [http://en.wikipedia.org/wiki/Lux lux] seconds, and can be computed from [http://en.wikipedia.org/wiki/Exposure_value exposure value] (EV) and scene [http://en.wikipedia.org/wiki/Luminance luminance] over a specified area.
In photographic jargon, an exposure generally refers to a single [http://en.wikipedia.org/wiki/Shutter_cycle shutter cycle]. For example: a long exposure refers to a single, protracted shutter [[cycle]] to capture enough low-[[intensity]] [[light]], whereas a multiple exposure involves a series of [[relatively]] brief shutter cycles; effectively layering a series of photographs in one image. For the same [http://en.wikipedia.org/wiki/Film_speed film speed], the accumulated photometric exposure (H) should be similar in both cases.[http://en.wikipedia.org/wiki/Exposure_%28photography%29]
[[Category: Photography]]
