Thursday, September 15, 2016

photograpy as naturalism (by niepce)

joseph niepce's first photograph from nature (1826)

first there is heliography. what is it?
... during his trials with lithography, Niepce experimented with light-sensitive varnishes and then with images produced in camera, but he was unable to prevent the images from fading. Niépce discovered that he produced his best results while using a solution of bitumen of Judea, which dated back to the ancient Egyptians but continued to be used for making lithographic engravings in the 1800s.
then comes, photography:
In 1822, Niépce successfully made a heliograph from an engraving of Pope Pius VII, which was destroyed during an attempt to copy it some years later. Over the next few years, Niépce experimented with bitumen on pewter or zinc plates that could be inked for printing. His best results came in 1826 with the copying of an engraving of the Cardinal Georges d'Amboise in which Niépce invented the first successful form of photomechanical reproduction.