Ansel Adams

Photographer, conservationist; born in San Francisco. A commercial photographer for 30 years, he made visionary photos of western landscapes that were inspired by a boyhood trip to Yosemite. He won three Guggenheim grants to photograph the national parks (1944--58). Founding the f/64 group with Edward Weston in 1932, he developed zone exposure to get maximum tonal range from black-and-white film. He served on the Sierra Club Board (1934--71)