SYDNEY.- The photographs Alfred Stieglitz [18641946] took around his summer house at Lake George, New York state, USA after 1915 are considered a major departure and dramatically influenced the course of photography. The desire to build a specifically American art led Stieglitz to explore the essential nature of photography, released from contrivances and from intervention in print and negative. Stieglitzs mature photographs from the 1910s onwards are free from any sense that photography must refer to something outside of itself in order to express meaning, said Judy Annear, senior curator photography, Art Gallery of New South Wales. This major exhibition is the first in Australia of Stieglitzs photographs. 150 are included and are amongst the very best Stieglitz ever printed. They are also the rarest. One