Pierre Louis Pierson - [Countess de Castiglione]

The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites and salt, which creates a glossy surface to hold light-sensitive silver salts. The paper is then sensitized in a solution of silver nitrate, and exposed in a camera or under a negative. After exposure, the print is developed in a solution of gallic acid and silver nitrate, which reduces the silver salts to metallic silver and creates the final image. The albumen print process was widely used for commercial and fine art photography in the 19th century and produced high-quality, detailed images with a distinctive glossy finish.

Pierre Louis Pierson Albumin Silberabzüge Gräfin Virginia Oldoini Verasis di Castiglione 1835 1899 Pierre Louis Pierson 1822 1913 Porträts Fans Frauen Gräfin Virginia Oldoini Verasis di Castiglione Gilman-Sammlungsgeschenk der Howard-Gilman-Stiftung Gräfin Castiglione 19. Jahrhundert französische Kunst hohe Auflösung ultrahohe Auflösung Albumin Drucke frühe Fotografie Metropolitan Museum of Art

1895

Metropolitan Museum of Art

https://www.metmuseum.org/

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