American
photographer, known for his black-and-white photographs of Yosemite
National Park, the California coast, and other wilderness areas of the
American West. Adams's painstaking control of tonality and detail made
him unequalled as a technical master of the black and white print. His
photographs convey both the vast scale and the intimate detail of a
landscape.
Adams
invented a method of exposure and development called the zone system,
which he used to divide the gradations of light in a scene into ten
zones from black to white; this allowed him to visualize the different
levels of gray in the final photograph with great accuracy. The control
he achieved with this system enabled him to capture such subtle changes
of tone and light that he could return again and again to the same scene,
yet produce images that were always fresh, never repetitive.
from "Adams,
Ansel Easton," Microsoft¨ Encarta¨ Online Encyclopedia 2001