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      by Published on 07-13-2010 02:01 PM
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      by Published on 07-13-2010 02:02 AM
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      Reciprocal Value F-Stop Chart

      This chart helps visualize what needs to happen if you change the shutter speed or aperture and want the exposure to remain unchanged.

      A full stop is either a halving or doubling of the amount of light reaching the image sensor or film.

      An example could be that you want to freeze action in your photograph.

      Your camera's shutter speed is 1/500 and your aperture is F8.
      If you change the shutter speed to 1/1000 (twice as fast, allowing half as much light in) the aperture must be set to F5.6 (large aperture allows double the light as F8)

      Going from 1/500 SS to 1/1000 SS the shutter speed doubles or is twice as fast, meaning half the amount of light will reaching the image sensor or film because the shutter remains open only half as long as before.
      by Published on 06-19-2008 06:30 AM   
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