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Camera antiques: the word photography is derived from
Greek, meaning "light writing", and was first used in 1839, the year the
Daguerreotype process was given to the world. The process was heralded
by the use of the dark room box, or camera obscura, which was
known for centuries. It was an imaginative work by De La Roche, called
Giphantie, which prophetically referred to capturing images on
canvas which had been coated by a sticky material, the mirror image
remaining even after the canvas had dried. The chemistry to perform the
photographic conversion had been known for hundreds of years, but nobody
put the concept together until mid-1827 in France when an experimenter
was able to harden a chemical substance upon an 8-hour exposure to
light. This led to the success of Louis Daguerre. He perfected his
invention in 1839, which he called Daguerreotype. But Daguerre's
process appeared six months after Englishman, William Fox Talbot's
Calotype process was presented to the Royal Society of London.
The difference was that Daguerre, with French government support, made
his invention free to the world. Also, the Frenchman's process produced
images that were far superior to Calotypes.




