Dynamic range

Dynamic range describes the luminance range of a scene being photographed, or related properties of technologies employed in photography

  • the limits of luminance range that a given digital camera or film can capture
  • the opacity range of developed film images
  • the reflectance range of images on photographic papers

Chemical-based photography methods can capture much less dynamic range than the human eye can see; digital techniques typically capture even less.
In traditional film photography, graduated neutral density filters are used to decrease the dynamic range of the scene to enable more detail to be captured in darker areas. Digital techniques to increase the dynamic range often blend multiple images captured with different exposures.

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