What role does photography separation play in the development of photography art?

19 at the turn of the 20th century, the rise of impressionism, which fought against the traditional academic school, led to the artistic separation movement. A group of American photographers, represented by Alfred Stiglitz, set up a photography group called "Photo Separatists" in new york. The original purpose of the photography branch was to devote itself to painting-style photography. After the 1920s, photo photography declined day by day. The school of photography separation initiated the development direction of artistic photography in the 20th century. Alfred Stiglitz, an American photographer, is a famous master in the history of photography. He pursued a variety of expression techniques and artistic styles, and later established the style of direct photography, which influenced many American photographers and promoted the development of modern American art. The photography separation school played a connecting role in the transformation from photo photography to modern artistic photography.