High Dynamic Range Imaging
Perhaps the greatest master of dynamic range in photography was Ansel Adams. He was the first to systematically measure the sensitivity range of all of the equipment he used. His "zone system" let him predict precisely what details he could capture on film and paper, so he could make decisions before pressing the shutter:
Panoramas - Another use for HDR is in panoramic images. Panoramas often have a wide dynamic range, e.g. one part of the panorama may contain the sun, another part may be in deep shadow. Online web panoramas constructed from HDR images look much better than non-HDR equivalents. credit Jon Meyer

