Désiré Charles Emanuel van Monckhoven (1834–1882) was a Belgian chemist, physicist, and photographic researcher. He was also an inventor and author. Works He wrote several of the earliest books on photography and photographic optics. His original French works were later translated to English and other languages. He invented or developed an enlarger (1864), a dry collodion process (1871), improvements of the carbon print process (1875–80), and improved silver-bromide gelatine emulsions. Selected work 1857 – Méthodes simplifiées de photographie sur papier (Simplified methods of photography on paper). Paris : Marion. 1858 – Procédé nouveau de photographie sur plaques de fer: et notice sur les vernis photographiques et le collodion sec (A new process of photography on ferrous plates). Paris : A. Gaudin. OCLC 7011879 1862 – Traité populaire de photographie sur collodion. Paris: Lieber. OCLC 17454826 1863 – A Popular Treatise on Photography: also A description of, and remarks on, The stereoscope and photographic optics (tr. W.H. Thornthwaite) London: Virtue Brothers. OCLC 17368038 See excerpt transcription 1867 – Photographic Optics; Including the Description of Lenses and Enlarging Apparatus. London: Robert Hardwicke. OCLC 5332903 – reprinted by Arno Press, New York. OCLC 4642259 See also Diaphragm (optics) Ghent University History of the camera Royal Photographic Society Notes References Beach, Frederick Converse. "Modern amateur photography," Harper's Magazine. January 1889. pp. 288–297. Day, Lance and Ian McNeil. (1996). Biographical Dictionary of the History of Technology. London: Taylor & Francis. Hannavy, John. (2008). Encyclopedia of Nineteenth-century Photography. London: CRC Press. "The Late Dr. Van Monckhoven," Nature. Volume 26, Issue 677, pp. 601– 602 (October 1882). External links Monckhoven biographical note Exhibitions of the Royal Photographic Society, 1870–1915: Exhibitor records, Dr. van Monckhoven, 1877 Optical engineers Belgian physicists Belgian chemists 19th-century Belgian inventors 1834 births 1882 deaths Ghent University alumni