The practical printer : a complete manual of photographic printing (1874)
Hearn, Charles W · Philadelphia : Benerman & Wilson · leaf 59
ns in the face, and leave the final retouching to be done by the artist, when they have decided on the negatives they prefer. I will now take up separately the different parts of the negatives, and state the manner in which they can be improved. The Background. Often there are streaks (Fig. 20)… … smooth and even strips ; and then the background, according to how nicely this blue painting has been done, will print proportionately better. Often u smoking the negative ” ‘is resorted to, which consists in moving constantly the back of the negative over a smoking lamp until the smoke has…
Photography -- Printing processes · Photographs on porcelain
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