To mark the film’s final use-by, or expiration, date, 'Polaroid: Exp 09.10.09’ at the Atlas Gallery in London brings together artists as diverse as the Hungarian-born fashion photographer and photojournalist André Kertész and the provocative Japanese photographer Nobuyoshi Araki, as well as a number of contemporary British artists, including Marc Quinn, commissioned specially for the show. And of course Andy Warhol, who shot Polaroids as preparatory sketches for his paintings of subjects such as Bianca Jagger and Muhammad Ali. Warhol often turned the camera on himself, as in his series known as the 'Fright Wigs’, his translucent face frozen in a frame of mad white hair. 'Mr Land invented this great camera called a Polaroid,’ Warhol said. 'There is something about the camera that makes the person look just right. I take at least 200 pictures and then I choose. Sometimes I take half a picture and a lip from another picture.’ All the images at Atlas are for sale. A Helmut Newton 'Big Nude’ Polaroid will sell for between £5,000 and £8,000 (a bargain considering the traditional film version would set you back about £180,000).