Sotheby's said the Polaroid picture heralded a change "not only in technology and aesthetics, but a change in expectations. To see a photograph moments after it is taken is an unchallenged right of our digital age. But in 1948, the hours it took to make prints from rolls or sheets of film were the tedious norm." By the 1960s, half of all US homes had a Polaroid. But the instant cameras fell out of fashion as consumers switched to digital photography

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