PIERRE-LOUIS PIERSON Portrait of Louis-Jacques-Mandé Daguerre (1787-1851) ca. 1860 [R/V] - x +

CN: PieL1860dagu

MT: albumen print on paper mounted on card (9x6 / C:11x6)

TX: printed at lower center of margin in French <L. PIERSON, PHOT.>, at left <Deposé>, at right <garanti d’ après nature.>, inscribed with fountain pen at lower center of margin <Daguerre>, inscribed with pencil at rear upper left <Daguerre>, printed at center <MAISON / MAYER & PIERSON PHOTOGRAPHES DE S.M. L'EMPEREUR / Boulevart des Capucines, 3 / PARIS. / Les Clichés étant conservés indéfiniment, / on peut toujours se procurer de nouvelles / épreuve de Cartes & Portraits sans reposer.>

PR: Maison Alphonse Giroux, Paris

DN: Mr. Megakles Rogakos - 2009

CM: Louis-Jacques-Mandé Daguerre (18 November 1787 - 10 July 1851) was a French artist and chemist, recognized for his invention of the daguerreotype process of photography. § Daguerre was born in Cormeilles-en-Parisis, Val-d'Oise, France. He apprenticed in architecture, theater design, and panoramic painting. Exceedingly adept at his skill for theatrical illusion, he became a celebrated designer for the theater and later came to invent the Diorama, which opened in Paris in July 1822. § In 1822 Joseph Nicéphore Niépce produced the world's first permanent photograph (known as a Heliograph). Helmut Gernsheim writes: "... In 1822, Niépce coated a glass plate ... The sunlight passing through ... This first permanent example ... was destroyed ... some years later." [Helmut Gernsheim, 1977] Daguerre partnered with Niépce three years later, beginning a four-year cooperation.[Art History 2005, p.964-967] Niépce died suddenly in 1833. The main reason for the "partnership", as far as Daguerre was concerned, was connected to his already famous dioramas. Niepce was a printer and his process was based on a faster way to produce printing plates. Daguerre thought that the process developed by Niepce could help speed up his diorama creation. § Daguerre announced the latest perfection of the Daguerreotype, after years of experimentation, in 1839, with the French Academy of Sciences announcing the process on January 7 of that year. Daguerre's patent was acquired by the French Government, and, on 19 August 1839, the French Government announced the invention was a gift "Free to the World." § Daguerre and Niépce's son obtained a pension from the Government in exchange for freely sharing the details of the process. Daguerre died in Bry-sur-Marne, 12 km (7 mi) from Paris. A monument marks his grave there. § The work on the Daguerre process was taking place at the same time as that of William Fox Talbot in England on the calotype process. Both men knew that they were working on a process that would revolutionize the art world. The Grand Tours which were so popular were illustrated by drawings of scenes and the "photographic" process would improve the quality and ease with which these popular holiday memories could be produced. § To protect his own invention, Daguerre himself registered the patent for Britain on 12 August (a week before France declared it "Free to the World"), and this greatly slowed the development of photography in that nation. Great Britain was to be the only place the patent was enforced. Antoine Claudet was one of the few people legally able to take daguerreotypes there. § Daguerre did not need to make money from the invention to live, since he had been pensioned by the French government.[3] Fox Talbot spent a considerable amount of money on his process (est. £5,000 in 1830s money) and licensed the process to British photographers where it was used instead of the Daguerreotype. § The first permanent photograph was made in 1826 by Joseph Nicéphore Niépce, building on a discovery by Johann Heinrich Schultz (1724): a silver and chalk mixture darkens under exposure to light. Niépce and Daguerre refined this process. Daguerre first exposed silver-coated copper plates to iodine, obtaining silver iodide. Then he exposed them to light for several minutes. Then he coated the plate with mercury vapor heated to 75° Celsius, to amalgamate the mercury with the silver, finally fixing the image in salt water. These ideas led to the famous Daguerreotype. § The resultant plate produced an exact reproduction of the scene. The image was laterally reversed - as images in mirrors are - unless a second mirror was used during exposure to flip the image. The image could only be viewed at an angle and needed protection from the air and fingerprints so was encased in a glass-fronted box. § ambrotypes were passed off as Daguerreotypes by being placed in these type of boxes. But the process was cheaper involving a weakly-developed glass card or paper to appear as a positive. Tintypes also were "boxed" as Daguerrotypes. § Daguerreotypes were usually portraits; the rarer views are much sought-after and are more expensive. The portrait process took several minutes and required the subjects to remain stock still. Samuel Morse was astonished to learn that Daguerrotypes of streets of Paris did not show any humans, until he realized that due to the long exposure times all moving objects became invisible. The time was later reduced with the "faster" lenses such as the Petzval's portrait lens, the first mathematically calculated lens. § The Daguerreotype was the Polaroid of the day, producing a single image which was not reproducible (unlike the Talbot process). Despite this drawback, millions of Daguerreotypes were produced. By 1851, the year of Daguerre's death, the Fox Talbot negative process was refined by the development of the wet collodion process, whereby a glass negative enabled a limitless number of sharp prints to be made. These developments made the Daguerreotype redundant and the process very soon disappeared.

[Megakles Rogakos 12/2009]

GERNSHEIM, HELMUT The 150th Anniversary of Photography in History of Photography 01/1977, v.I, #1
MARILYN STOKSTAD; DAVID CATEFORIS; STEPHEN ADDISS Art History 2005 Pearson Education, New Jersey, Upper Saddle River
WOOD, DEREK R. A State Pension for L. J. M. Daguerre for the secret of his Daguerreotype technique in Annals of Science 1997, v.54, p.489-506
LINDGREN, CARL EDWIN Teaching Photography in the Indian School 1991 India International Photographic Council, Madras, p.9