Ansel Adams (1902–1984) was a visionary American landscape photographer and environmentalist celebrated for his iconic black-and-white images of the American West. Born in San Francisco, Adams developed a passion for photography during early visits to Yosemite National Park, where he received his first camera at age 14. He co-founded Group f/64, advocating for "pure" photography that emphasized sharp focus and the full tonal range. Adams developed the Zone System, a method for precise control over photographic prints. A lifelong environmental advocate, he worked with the Sierra Club and was awarded the Presidential Medal of Freedom in 1980. His legacy continues to inspire generations with his profound impact on photography and conservation.