The Photography of Charles Sheeler, American modernist

From the "blurb" :
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Charles Sheeler (1883-1965) occupied an essential place in the heart of American art - both as a painter (a master of the Precisionist school) and a photographer. Beginning in 1915 Sheeler helped define what would become photographic modernism : a precise and factual approach to the real - stripped of pictorial convention - allowing photography's unique properties the task of representing objects in the world. In Sheeler's own words, photography possesses "an exactitude not equaled by any other medium". Edward Steichen, speaking for his fellow modernist photographers, once said : "Sheeler was objective before the rest of us where."
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