Ferdinand Hurter Ferdinand Hurter (15 March 1844 – 12 March 1898) was a Swiss industrial chemist who settled in England. He also carried out research into photography. Early life Ferdinand Hurter was born in Schaffhausen, Switzerland, the only son of Tobi ...

(1844–1898) and

Vero Charles Driffield Vero Charles Driffield (7 May 1848 – 14 November 1915) was an English chemical engineer who also became involved in photographic research. Driffield was educated at Liverpool Collegiate and Sandbach Grammar School. He also attended a priv ...

(1848–1915) were nineteenth-century photographic scientists who brought quantitative scientific practice to

photography Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is emplo ...

through the methods of

sensitometry Sensitometry is the scientific study of light-sensitive materials, especially photographic film. The study has its origins in the work by Ferdinand Hurter and Vero Charles Driffield (circa 1876) with early black-and-white emulsions. They determin ...

and densitometry. Among their other innovations was a photographic exposure estimation device known as an

actinograph 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, it measures the ''actinic'' or ''chemical'' intensity of light, as opposed to radiometric o ...

References

External links

A brief history of Hurter and Driffield by Ron Callender in ''Encyclopedia of Nineteenth-century Photography'' 2008 pp.732-4
History of photography {{photo-stub

See also

References

External links