Waterhouse, Major-General James

b. 1841
d. 28 September 1922
English military man and photographer.
Waterhouse spent most of his career in the Indian Army. In 1861–2 he was commissioned to photograph the tribes of central India, and over the next few years visited many parts of the subcontinent. In November 1866, after working for five months in the Great Trigonometrical Survey learning the process of photozincography (an early photomechanical process used chiefly for map making), he took charge of photographic operations at the Surveyor-General's office in Calcutta, a post he held until retiring in 1897. During this time he developed many improvements in the photomechanical methods used for reproduction in his office. He also experimented with methods of colour-sensitizing photographic materials, experimenting with eosine dye and publishing in 1875 the fact that this made silver halide salts sensitive to yellow light. He also discovered that gelatine dry plates could be made sensitive to red and infra-red illumination by treatment with alizarine blue solution.
He continued his researches upon his retirement and return to England in 1897, and made a special study of the early history of the photographic process. His work on dye sensitizing brought him the Progress Medal of the Royal Photographic Society, and the Vienna Photographic Society awarded him the Voigtländer Medal for researches in scientific photography. One invention often erroneously attributed to him is the Waterhouse stop, the use of a series of perforated plates as a means of adjusting the aperture of a photographic lens. This was described in 1858 by a John Waterhouse, being his only contribution to photography.

Biographical history of technology. - Taylor & Francis e-Librar. . 2005.

Look at other dictionaries:

  • James Joyce — James Joyce …   Wikipedia Español

  • Nathaniel Waterhouse — was an English politician who sat in the House of Commons in 1656 and 1659. Waterhouse was of the family of Waterhouse of Halifax and was a resident of Westminster. He was steward of the lands of Oliver Cromwell from 1651 to 1658.[1] In 1656, he… …   Wikipedia

  • New Hampshire General Court — General Court of New Hampshire Type Type Bicameral Houses …   Wikipedia

  • Photography, film and optics — See also: INDEX BY SUBJECT AREA [br] Abney, William de Wiveleslie Acres, Birt Anschütz, Ottomar Archer, Frederick Scott Baekeland, Leo Hendrik Barnack, Oskar Bayard, Hippolyte …   Biographical history of technology

  • Liste Des Généraux De La Confédération — Liste des officiers généraux de la Confédération ou Sudistes, durant la guerre de Sécession Liens internes Liste des généraux de l Union Grades Général = général d armée, Lieutenant général = général de corps d armée, Major général = général de… …   Wikipédia en Français

  • Liste des généraux de la Confédération — Liste des officiers généraux de la Confédération ou Sudistes, durant la guerre de Sécession : Grades Général = général d armée, Lieutenant général = général de corps d armée, Major général = général de division, Brigadier général = général… …   Wikipédia en Français

  • Monmouthshire (UK Parliament constituency) — For other uses, see Monmouthshire (disambiguation). Coordinates: 51°46′05″N 2°48′40″W / 51.768°N 2.811°W / …   Wikipedia

  • List of Old Falconians — This is a list of some of the more prominent Old Falconians who are the alumni of North Sydney Boys High School. The Old Falconians Union is the alumni body of the school. The name Old Falconians is derived from Falcon Street which is the address …   Wikipedia

  • Nathaniel Hitch — Nationality English Field Sculpture Training Was sent by Farmer and Brindley to evening classes at Borough Polytechnic before setting out as a journeyman sculptor …   Wikipedia

  • Anglo-Iraqi War — Part of the Mediterranean, Middle East and African theatre of the Second World War British troops looking at …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.