At the bottom of the page I provide a list of links to additonal resources including websites, video tutorials, free software downloads and books that deal with HDR photography in more depth. In this article I touch on the history of HDR (high dynamic range) photography and describe some of the methods used to convert high dynamic scenes into LDR (low dynamic range images) for display. There are many methods to compress the tonal range and produce better dynamic range photographs. In high contrast situations a single photo is rarely able to capture detail in both the shadows and highlights. The problem has always been that processes in photography including digital photography limit the range of tones we can capture when the dynamic range of a scene is very high such as shooting an interior with window light or in a canyon on a sunny day. Many photographers do not realize that shooting HDR can result in images that simulate what we see with our eyes. HDR photography has two main purposes 1) to produce an image that captures a greater dynamic range of light and 2) to create images that exaggerate contrast for artistic effect. Surrealistic tone mapped photo created from a single image using Photomatix - contrast has been exaggerated. I created a "realistic tone mapped photo " using Adobe Photoshop Sunrise at Castle Junction in Banff National Park.
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