Ansel Easton Adams (February 20, 1902 – April 22, 1984) was an American landscape photographer and environmentalist. His black-and-white images of the American West, especially Yosemite National Park, have been widely reproduced on calendars, posters, books, and the internet.Adams and Fred Archer developed the Zone System as a way to determine proper exposure and adjust the contrast of the final print. The resulting clarity and depth characterized his photographs. He primarily used large-format cameras because the large film used with these cameras (primarily 4x5 and 8×10) contributed to the clarity of his prints.
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I have often thought that if photography were difficult in the true sense of the term -- meaning that the creation of a simple photograph would entail as much time and effort as the production of a good watercolor or etching -- there would be a vast improvement in total output. The sheer ease with which we can produce a superficial image often leads to creative disaster.