File:The American annual of photography (1911) (14783127012).jpg

Identifier: americanannualof1911newy (find matches)
Title: The American annual of photography
Year: 1911 (1910s)
Authors:
Subjects: Photography
Publisher: New York : Tennant and Ward
Contributing Library: Harold B. Lee Library
Digitizing Sponsor: Brigham Young University

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lates made from properly exposed anddeveloped negatives, made through standard filters, are nowready for the proofer. If we print our red plate in, say, greenink, we know without the exercise of any particular amountof thought, that the entire result will be wrong, because weare (nominally) 100 per cent, off in color. But if we were toproof it in a transparent vermilion ink we should approxi-mate more the copy because we are only (say) 50 per cent,off—another proof in crimson ink would be still nearer theoriginal because we would be only 20 per cent, wrong in hue.It will therefore be evident that even perfect separationplates will give results far from the original because of wrong-ly hued inks, the amount of error depending solely upon theperfection of the printing color. When we consider that thiserror in hue is multiplied by three for the various plates, it mayreadily be appreciated that the ultimate proof, withoutre-etching, is liable to present a somewhat discouragingresult 280
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THE STORY BOOK. MARY CARNELL, It appears to be a fixed rule with the majority of coloroperators to regard everything outside of their own exper-ience as being subject to grave suspicion; just why I am un-able to state. The attempt to help them on correct principlesof their own business is generally received in anything but agrateful (or even courteous) way. Surely the man who bringsa perfectly unbiased and properly cultivated mind to the studyof any subject, and who for years is under considerablefinancial outlay by the purchase of delicate apparatus for itsinvestigation, is entitled to consideration, even from the in-dividual who (because in a rule of thumb way, he does thesame thing, day-in-day-out) is termed a practical man. Onemight consider that the most practical man is he who under-stands by competent study the theory of the science he workswith, and combines with that the merely mechanical exper-ience in the handling of the necessary trade tools.

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