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In Focus Guide to Better Photography
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glossary.cxt
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00156_Field_Exposure value.txt
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1997-11-05
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Exposure value (EV) - A value for the amount of light. Used in exposure measurement, it links shutter speed and aperture. A single EV number can represent, for example, 1/60 sec at ƒ5.6 and 1/250 sec at ƒ2.8.