Rabu, 23 September 2009

Joseph Nicéphore Niépce


Joseph Niépce was born on 7 March 1765 in Chalon-sur-Saône, Saône-et-Loire. He took what is believed to be the world's first photographs, in 1825, of a 17th centuryengraving of a man with a horse and of an engraving of a woman with a spinning wheel. Niépce did not have a steady enough hand to trace the inverted images created by the camera obscura, as was popular in his day, so he looked for a way to capture an image permanently. He experimented with lithography[3], which led him in his attempt to take a photograph using a camera obscura. Niépce also experimented with silver chloride, which darkens when exposed to light, but eventually looked tobitumen, which he used in his first successful attempt at capturing nature photographically. He dissolved bitumen in lavender oil, a solvent often used invarnishes, and coated the sheet of pewter with this light capturing mixture.[4] He placed the sheet inside a camera obscura to capture the picture, and eight hours later removed it and washed it with lavender oil to remove the unexposed bitumen.

He began experimenting to set optical images in 1793. Some of his early experiments made images, but they faded very fast. It was said that he made the first long lasting images in 1824. The earliest known example of a Niépce photograph (or any other photograph) was created in June or July, 1827, according to some information. Niépce called his process heliography, which literally means "sun writing".[5] Nevertheless, semiologist Roland Barthes, in a Spanish edition of his book "La chambre claire", "La cámara lúcida" (Paidós, Barcelona,1989) shows a picture from 1822, "Table ready", a foggy photo of a table set to be used for a meal.

Starting in 1829[6] he began collaborating on improved photographic processes with Louis Daguerre, and together they developed the physautotype, a process that used lavender oil. The partnership lasted until Niépce’s death in 1833. Daguerre continued with experimentation, eventually developing a process that little resembled that of Niepce.[7] He named this the "Daguerreotype", after himself. He managed in 1839 to get the government of France to purchase his invention on behalf of the people of France. The French government agreed to award Daguerre a yearly stipend of 6,000 Francs for the rest of his life, and to give the estate of Niépce 4,000 Francs yearly. This arrangement rankled with Niépce's son, who claimed Daguerre was reaping all the benefits of his father's work. In some ways, he was right—for a good many years, Joseph Nicephore Niépce received little credit for his significant contribution to the development of photography. Later historians have reclaimed Niépce from relative obscurity, and it is now generally recognized that his "heliographic" process was the first successful example of what we now call photography[4]: an image created on a light-sensitive surface, by the action of light.

In 2002, an earlier remaining photograph which had been taken by Niépce was found in a French photograph collection. The photograph was found to have been taken in 1825, and it was an image of an engraving of a young boy leading a horse into a stable. The photograph itself later sold for 450,000 euros at an auction.[8]

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