Nicéphore Niépce

Joseph Nicéphore Niépce was born in 1765 in Chalon-sur-Saône, Burgundy, France. After brief military service under Napoleon he returned to his native region to devote himself to scientific experiments. The problem he pursued was one that chemists and artists had recognized but never solved: making permanent the images projected by a camera obscura^*1. The process he developed, héliographie, coated a pewter plate with bitumen of Judea — an asphalt derivative — dissolved in oil of lavender. After a long exposure in a camera obscura, the bitumen hardened where light struck and was washed away elsewhere, leaving a permanent record. This was the first time light had been used to chemically and durably fix an image in a material^*2. The oldest surviving photograph made by this method, "View from the Window at Le Gras" (c. 1826–27), was taken from an upper-storey window of his estate at Saint-Loup-de-Varennes. Buildings on both sides of the courtyard appear lit because the sun moved across the sky during an exposure estimated at many hours, possibly several days. In 2002–03 the Getty Conservation Institute confirmed through X-ray fluorescence spectroscopy that the plate is bitumen on a pewter (tin-lead alloy) base; the original is held by the Harry Ransom Center at the University of Texas at Austin^*3. In 1827 Niépce visited England hoping to present his process to the Royal Society, but was rejected because he refused to disclose his method. He formalized a ten-year partnership with Louis Daguerre in 1829, sharing the details of heliography. Together they developed the physautotype in 1832, but Niépce died in 1833 before a commercially viable process had been achieved. Daguerre continued alone and announced the daguerreotype in January 1839. The official announcement barely mentioned Niépce; his son Isidore contested this in an 1841 pamphlet^*4. The decisive reassessment came in 1952, when photographic historians Helmut and Alison Gernsheim rediscovered the Le Gras heliograph. The Metropolitan Museum has written that Niépce had achieved "primitive but real results as early as 1826," and his role as the originator of the photographic process is now widely recognized^*5.