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Nicéphore Niépce covered a sheet of metal with tar. Eight hours later, he had a permament photograph.
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Louis Daguerre's was taking pictures in 15 minutes.
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A small camera, the Kodak, was invented by American George Eastman. And for the first time you did not need to know anything about optics or chemistry to take a picture.
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The Brownie was invented by Eastman. It cost only 5 shillings.