sensitometer

[sen-si-tom-i-ter]

noun

Photography.

1. an instrument for testing the sensitivity of various types of film, consisting of an apparatus for exposing successive parts of the film to a light of standard intensity at successively increasing lengths of exposure.

sensitometer

/ ˌsɛnsɪˈtɒmɪtə /

noun

1. an instrument for measuring the sensitivity to light of a photographic material over a range of exposures

Other Word Forms

• sensitometric adjective
• sensitometrically adverb
• sensitometry noun

Word History and Origins

Origin of sensitometer¹

First recorded in 1875–80; sensit(ive) + -o- + -meter

Example Sentences

There, her job would be to operate a sensitometer, a machine that was part of the film development process.

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Some brands of plates are marked with the sensitometer number, like the Stanley, Carbutt, Seed, etc., and others are marked with a letter like the Cramer.

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Another method, employed largely in England, depends on the use of the Warnerke sensitometer.

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The plates were exposed in the sensitometer as usual, except that it was found convenient in several cases to use a larger stop, measuring 0.316 cm. in diameter.

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