The Barnet book of photography by Unknown

Author:Unknown
Language: eng
Format: epub, pdf
Tags: Photography
Publisher: Barnet, [Eng.] : Elliott & Sons
Published: 1905-03-25T05:00:00+00:00

158 BARNET BOOK OF PHOTOGRAPHY.

movement of the prints is a very real need, because unless the various solutions have free and equal access to all parts of the prints—front and back—at the same time unequal chemical action is inevitable, and hence patchy, unequally-toned prints, or else imperfectly fixed or washed prints, which will ultimately discolour in patches. The method of moving the prints is worth mentioning. Many workers seem to think that if the dish is kept rocking, as in developing a plate, it is sufficient. Far from it. Such a plan might answer for single prints, but not for batches. The correct way is to feed the prints separately into the bath, each one face downwards. This is done with the right hand whilst keeping the mass of prints on the move with the left hand. Thus each hand is kept in a different solution, and never touches the other until the whole batch is transferred. Both hands can then be used in the one bath, and the whole batch kept constantly on the move by inserting the fingers under the prints and continually bringing the bottom ones up to the top. This can be done singly in the case of small batches of a dozen or fifteen prints ; but larger batches need quicker attention, and the bottom ones should be withdrawn in lots of three or four at a time with the right hand. They are then quickly separated with the left hand, whilst the right is fishing for another lot. The advisability of keeping each hand in its own dish is most plainly seen when hypo is one of the solutions in use; but the method still holds good in the case of other solutions, which do not show the evil effects of contamination so unmistakably. Besides which it is a good habit to cultivate until it becomes automatic.

The second point should not need elaboration ; it is self-evident. Dishes can now be obtained which are legibly marked " washing," " toning " and " fixing," and each dish should be religiously kept for its own particular purpose.

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