File:The American annual of photography (1919) (14595990437).jpg

Identifier: americanannualof3334newy (find matches)
Title: The American annual of photography
Year: 1919 (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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e bath they are removed to the second bath, com-mencing with the lowest cards or those first placed in. Alto-gether the cards get some twenty minutes, probably more, offixation. The cards when leaving the fixing bath are care-fully drained and passed to the first washing water. Carefuldraining has more to do with the elimination of hypo than veryconsiderable washing when hurriedly done, hence when trans-ferring the cards from one washing water to another drainingshould be carefully attended to for the first several waters. No cards can be expected to wash well if placed in runningwater and allowed to take their chance, hence with postcardshand changing is almost imperative, but the amount of handwashing usually assumed to be necessary is really very un-necessary. Careful drainage in order to get rid of all adherentwater more or less charged with hyposulphite, followed bygood soakings between the changes will make long tediouswashings superfluous. My own batches seldom get more than 66
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m < 12; <I—I w < 67 a dozen washing waters and such cards will stand the test ofsulphide toning without any depreciation of depth or tone. The keynote of success in this method of producing bromidepostcards is the exposure. This must be carefully ascertainedso that the cards can be developed in batches of the numbergiven without forcing from under-exposure on the one handor hurry from over-exposure on the other. Developmentshould proceed gradually and evenly and occupy until com-pleted about four minutes. It is an extremely expeditious andreliable method of working for producers of moderate quanti-ties of cards which I have thoroughly tested by daily use forthe last ten years. Of course it cannot compare with theproduction of machine printing, but it is at least the equal ofthe bulk of single card printing machines on the market.Working single handed I have frequently printed, developedand fixed at the rate of one hundred cards an hour withoutany attempt at establishing a r

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