Ansel Adams was one of the most popular photographers in the world. He devoted his life to the nature, contributing in a determinate way to the consolidation of the imagined collective idea of wilderness. Ansel Adams was born in San Francisco in 1902. his connection to nature transformed in to a real passion during his first voyage to Yosemite Park. He was just fourteen when he started to take photos of the park which should become one of his most favorite subjects. In 1920s he met Paul Strand who introduced him the principles of straight photography. Together with Edward Weston, Sonya Noskowiak e Imogen Cunningham he founded f/64. According to Adams the visualization of the picture you want to obtain, even before the exposition and the print, is the crucial thing. He wanted his pictures to reflect the feelings one could have in front of the captured moment. The wilderness for him is a state of mind and the heart. Adams personally organized numerous exhibitions showing through his photos the marvel of the untouched nature. Adams's landscapes in black and white are full of strength and dynamism. To him the photography is personal expression. A photography is not merely a representation of reality but rather an interpretation of reality through a vision of a photographer. One of his most important pictures is ''Moonlight over Hernandez'' took in New Mexico in 1941. This image is very impressive, Adams managed to show the details of the moon and of the city. Another famous photo is ''Monument Valley'' took in Arizona in 1958, the rock in the foreground and the mountains in the background despite being perfectly aligned with a geometrical logic, appear completely sharp.