shade of the mixture it is of no importancewhether the absorption is a general or a partial one, whethercertain rays are completely absorbed and the rest recombineto make white, or not. Fig. 16 shows the absorption spectrum of two greypigments. In I all rays of the spectrum show an even butnot too… … Fig. 16. Both greys can cause precisely the same sensation, butshow entirely different qualities in their mixture with otherpigments. The grey / will give a yellowish grey, if mixedwith a yellow pigment the absorption of the latter is visiblein 77/. Grey 77, however, loses its character in such…
Color photography · Color printing
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