In the middle of the 19th century, 25 years after its invention, photography is still considered as a simple scientific curiosity. But between 1850 and 1860 a dozen of photographers, in France and in England, will get in a struggle to get photography acknowledged as an art. It will be the decade of Nadar, Le Gray, Baldus, Robison, Rejlander, Fenton. They will be the first ones to explore all posibilities of photographical creation and of its relations to reality.