Ansel Adams

Ansel Adams was an american Photographer born on  February 20, 1902 and died on April 22, 1984, he was well known for his black and white Photography, and great landscape Photography he produced over the years, and he is a well known for taking most of his Photography in Yosemite National Park.

Adams, and with the help of two other Photographers William Van Dyke and Edward Weston created the "Group f/64" . Adams's photographs are constintally reproduced on calendars, posters, and in books, making his photographs widely distributed around the world. 

Source: http://en.wikipedia.org/wiki/Ansel_Adams

As Adam would say

"Photography is more than a medium for factual communication of ideas. It is a creative art." 

 here are some examples of Ansel Adam's work