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单词 extinction meter
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extinction meter
extinction meter n. a photographic exposure meter which gives readings in terms of visual comparisons.
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society > leisure > the arts > visual arts > photography > camera > parts and accessories of camera > [noun] > meters
photographometer1848
heliograph1851
actinometer1866
sensitometer1880
light meter1889
exposure meter1891
iconometer1894
extinction meter1931
1931 J. H. Reyner Cine-photogr. for Amateurs v. 58 These meters are often known as extinction meters, because the light coming through them is gradually reduced to or worked up from an extinction point.
1951 G. H. Sewell Amateur Film-making (ed. 2) ii. 19 An early type [of exposure meter] used for cinematography was the extinction meter, in which the subject was observed through a small telescope in which was a density wedge that was used in assessing the correct exposure for the subject.
extracted from extinctionn.
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