• Thumbnail for Hurter and Driffield
    Ferdinand Hurter (1844–1898) and Vero Charles Driffield (1848–1915) were nineteenth-century photographic scientists who brought quantitative scientific...
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  • Thumbnail for Sensitometry
    has its origins in the work by Ferdinand Hurter and Vero Charles Driffield (circa 1876) with early black-and-white emulsions. They determined how the...
    15 KB (1,925 words) - 22:50, 16 August 2023
  • and myself at the Art Center School in Los Angeles, around 1939–40." The technique is based on the late 19th-century sensitometry studies of Hurter and...
    31 KB (915 words) - 04:44, 8 July 2024
  • Highways (disambiguation) Högsta Domstolen, the Supreme Court of Sweden Hurter and Driffield Numbers or H&D, an old scale for measuring film speed Hard drive...
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  • Thumbnail for Film speed
    determined on the Hurter and Driffield characteristic curve by the intercept between the gradient of the straight line part of the curve and the line representing...
    124 KB (12,150 words) - 16:38, 8 June 2024
  • Thumbnail for Reciprocity (photography)
    and increasing light intensity, and vice versa. The reciprocal relationship is assumed in most sensitometry, for example when measuring a Hurter and Driffield...
    21 KB (2,537 words) - 17:37, 18 July 2024
  • Thumbnail for Ferdinand Hurter
    into photography. Ferdinand Hurter was born in Schaffhausen, Switzerland, the only son of Tobias Hurter, a bookbinder, and his wife Anna Oechslein. His...
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  • (film speed), by the two nineteenth-century photographic scientists Hurter and Driffield Croatian Journalists' Association (Croatian: Hrvatsko novinarsko...
    834 bytes (129 words) - 16:56, 30 July 2023
  • Thumbnail for Slide rule
    actinograph of Hurter and Driffield was a two-slide boxwood, brass, and cardboard device for estimating exposure from time of day, time of year, and latitude...
    66 KB (8,266 words) - 03:38, 2 August 2024
  • Thumbnail for Vero Charles Driffield
    Hurter. Through a common interest in music they became friends and around 1876 Driffield persuaded Hurter to take up photography as a hobby. Hurter applied...
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  • Thumbnail for Actinograph
    Ferdinand Hurter and Vero Charles Driffield patented a device for estimating the actinic power of sunlight and for computing exposure times and apertures...
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  • Thumbnail for Photography
    continued into the 1990s, and in the niche field of laser holography, it has persisted into the 21st century. Hurter and Driffield began pioneering work on...
    84 KB (9,307 words) - 06:17, 26 July 2024
  • box is invented by Robert Gair, a Brooklyn printer and packaging producer. The Hurter and Driffield film speed measurement system is described. Copley...
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  • optimal film exposure and development. The technique is based on the late 19th century sensitometry studies of Hurter and Driffield, and provides photographers...
    14 KB (1,309 words) - 16:30, 28 July 2024
  • Thumbnail for Photographic film
    theatrical 35 mm films until it was finally discontinued in 1951. Hurter and Driffield began pioneering work on the light sensitivity of photographic emulsions...
    72 KB (8,910 words) - 18:29, 14 July 2024
  • Thumbnail for Solarization (photography)
    and the regression process. The regression process theory was formulated by H. Luppo-Cramer in 1911, based on research by F. Hurter, V.C. Driffield and...
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  • Routledge. p. 631. ISBN 1-134-65020-5. Hurter, Ferdinand & Driffield, Vero Charles (1890) Photochemical Investigations and a New Method of Determination of...
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  • Thumbnail for Kenneth Mees
    1912 and 1952 Hurter and Driffield Medal, 1924 Henry Draper Medal, National Academy of Sciences, 1936. Progress Medal, Society of Motion Picture and Television...
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  • Thumbnail for Curve (tonality)
    luminance and chromaticity, but it can also be used in RGB, CMYK or whatever other colour models the software supports. Blend modes Image histogram Hurter–Driffield...
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  • range of light intensity that is represented by the recording, via the HurterDriffield curve. In the context of photography, the dynamic range is often measured...
    3 KB (357 words) - 02:17, 20 October 2023
  • exposure, as characterized by the film's characteristic curve, or HurterDriffield curve; this plot of optical density of the developed negative versus...
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  • Thumbnail for Exposure (photography)
    Night photography Multiple exposure Night photography Sensitometry (and HurterDriffield curves) Shutter speed (also called exposure time) Zebra patterning...
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  • Thumbnail for Photographic developer
    image and the quantity of light. This study is called sensitometry and was pioneered by F Hurter & V C Driffield in the late 19th century. In colour and chromogenic...
    17 KB (2,453 words) - 14:58, 28 November 2023
  • Royal Photographic Society (category Photography museums and galleries in England)
    Rudolphus Dallmeyer 1897 – Gabriel Lippmann 1898 – Ferdinand Hurter and Vero Charles Driffield 1899 – No award 1900 – Louis Ducos du Hauron 1901 – Richard...
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  • emulsions are not in common use until the mid-20th century. 1876 – Hurter & Driffield begin systematic evaluation of sensitivity characteristics of photographic...
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  • formulation and processing method, this curve is its characteristic or HurterDriffield curve. Since both axes use logarithmic units, the slope of the linear...
    43 KB (5,349 words) - 07:00, 21 April 2024
  • Thumbnail for York–Scarborough line
    an embankment beside the River Derwent. Thomas Cabry was on the engine and hurt his foot in the process. (Brian Lewis 1994: The Cabry Family, p.31). On...
    11 KB (1,109 words) - 20:46, 24 July 2024
  • Thumbnail for List of Harrier family losses
    List of Harrier family losses (category Accidents and incidents involving United States Navy and Marine Corps aircraft)
    September 2012. "Marine Corps Harrier crashes in Arizona desert; pilot slightly hurt". Stripes.com. Retrieved 1 March 2019. BBC article "Marine Corps Harrier...
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  • age and old-fashioned style, and his lack of fame relative to the former players on the BBC's commentary roster. Everton commented, "I'm hurt and angry...
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  • defeating Harlequins in the final. The event was sponsored by Tetley's Brewery and the final was held at Twickenham Stadium. "Newcastle fly past at the last"...
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