Ansel Adam is one of the most successful photographers of all time. He is largely responsible for starting the “California School” of photographers along with Imogen Cunningham and Edward Weston. Their Group f/64 rejected the Pictorialism styles of the day in favor of “pure” or “straight photography”
His most notable subjects were landscapes, particularly those of Yosemite National Park. Ansel developed printing techniques that yielded beautiful prints with an emphasis on tonality and sharpness.
Along with Fred Archer, the two developed what we know today as the Zone System. The Zone System is a formalized process for black and white printing. It divides the picture into measured zone densities allowing the photographer to control the exposure in camera, negative processing and the final print.