| 单词 | reciprocity failure |
| 释义 | > as lemmasreciprocity failure reciprocity failure n. Photography departure from adherence to the reciprocity law (as in all real emulsions), whereby greater exposure than that predicted by the law is required at both very low and very high light intensities. ΘΚΠ society > leisure > the arts > visual arts > photography > action of taking photograph > technical factors > [noun] > reciprocity law or failure reciprocity1815 reciprocity law1900 reciprocity failure1907 1907 S. E. Sheppard & C. E. K. Mees Investig. Theory Photogr. Process ii. vi. 221 The reciprocity failure may be considered to start at much the same point relatively to the inertia points in the two plates. 1966 D. G. Brandon Mod. Techniques Metallogr. 13 Emulsions for astronomical applications, involving exposure times of several hours, show almost no reciprocity failure at all. 2006 Jrnl. Optics A. 8 797/1 Digital recording devices seem not to be subject to an effect comparable to the so-called ‘reciprocity failure’ of photochemical materials. < as lemmas |
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