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Instrument for measuring a light source's ability to expose photographic film
An actinograph is an instrument for measuring or estimating the amount of light available, in terms of its ability to expose photographic film. That is
Actinograph
19th-century photographic scientists
innovations was a photographic exposure estimation device known as an actinograph. H&D speed numbers, originally described in 1890, for film speed measurements
Hurter_and_Driffield
Defunct American film studio
department at the Museum of Modern Art, acquired 900 cans of film from the Actinograph Corp. Bronx Biograph studio and laboratory facitlies, which was closing
Biograph_Company
German meteorologist and professor (1877–1952)
meteorological scientist and university professor. He invented the "Robitzsch Actinograph", a type of pyranometer and wrote numerous scientific books and articles
Max_Robitzsch
Mechanical analog computer
specialized slide rules for photographic applications. For example, the actinograph of Hurter and Driffield was a two-slide boxwood, brass, and cardboard
Slide_rule
Instrument for measuring thermal radiation
prefix actin for scientific instruments, effects, and processes. The actinograph is a related device for estimating the actinic power of lighting for
Actinometer
1913 film
film were discovered in a cache of 900 film canisters donated from the Actinograph Corp. Bronx Biograph studio and laboratory facilities from the contents
Lime_Kiln_Field_Day
Former film studio and laboratory complex in the United States
assigned management of the property to one of its own subsidiaries, The Actinograph Corp., which held it until 1948. Martin Poll (on July 21, 1959, sworn
Biograph_Studios
First principal of the Royal Albert Memorial College, Exeter
administrator Earth scientist natural historian Known for Creator of the actinograph for meteorological research Spouse Ethel Paterson (m. 1883) Parent
Arthur_W._Clayden
British scientist (1807–1887)
light, and published Researches on Light in 1844. He also developed the actinograph in 1845. Hunt had a long-abiding interest in poetry as well. He regularly
Robert_Hunt_(scientist)
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