Definition of Exposure

Same�what I like to do before writing the article or message in this blog, I had search in google.com for the definition of exposure and what I got are:

• vulnerability to the elements; to the action of heat or cold or wind or rain; "exposure to the weather" or "they died from exposure";
• he disclosure of something secret; "they feared exposure of their campaign plans"
• aspect re light or wind; "the studio had a northern exposure"
• the intensity of light falling on a photographic film or plate; "he used the wrong exposure"
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• photograph: a picture of a person or scene in the form of a print or transparent slide; recorded by a camera on light-sensitive material
• the act of exposing film to light
• In photography, exposure is the total amount of light allowed to fall on the film (or electronic sensor in the case of digital photography) during the process of taking a photograph. Exposure is measured in exposure value (ev), with higher values denoting more light.
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After I got the results, I think for me the exposure in photography are How much light you want in your shot and we can set that where in our picture should be bright or dark however, to understand the ways to control your light is need time and also need more practice. Besides, to know about exposure should really know about ISO, Aperture (F/stop) and also speed shutter.