Inverse or complementary correspondence; (Photography) the correspondence between the degree of darkening of an emulsion and both the light intensity…
| 单词 | θ229665 |
| 释义 | society > leisure > the arts > visual arts > photography > action of taking photograph > technical factors > [noun] > reciprocity law or failure (3) reciprocity1815 Inverse or complementary correspondence; (Photography) the correspondence between the degree of darkening of an emulsion and both the light intensity… reciprocity law1900 the principle that the degree of darkening of an ideal emulsion is constant for a given incident energy, i.e. for a given product of light… reciprocity failure1907 departure from adherence to the reciprocity law (as in all real emulsions), whereby greater exposure than that predicted by the law is required at… |
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