"The first image is a reproduction of a 17th century Dutch engraving showing a man leading a horse. The photograph was sold at Sotheby's in Paris on March 21, 2002, to the French National Library for $443,000 (£330,000). The Niépce correspondence that accompanied the print gave a step-by-step account of how Niépce made his discovery. The print is the only surviving testament to Niépce's achievement in the summer of 1825 using light alone to make a plate from which an image could be printed.
The world's second oldest known permanent camera image, bitumen on pewter, is a view taken from Niepce's second floor window. The exposure took approximately eight hours. The third image was reportedly also made in 1826. "

Read More at http://www.digicamhistory.com/


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