Complete Self-Instructing Library of Practical Photography
by Schriever
Format: Paperback
ISBN13: 9781151995391
Paperback|9781151995391
Out of Stock
Overview
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 edition. Excerpt: ... in a damp place; moisture; chemical stains; fumes from ammonia, turpentine, illuminating or coal gas. Always keep the paper in a dry, cool place, give full exposure and never force development. 747. Prints Too B1ack.--This is generally caused by printing from negatives that are too weak, or thin; by over-exposure or over-development; insufficient amount of bromide of potassium in the developer. Perhaps you have selected the wrong grade of paper to use. Try the " Regular" paper in place of the "Special," as more contrast will thus be secured. Or, if you have too much contrast try the " Special;" this will give you more softness. 748. Green Tones.--Green tones are generally caused by using too much bromide; over-exposing; using a developer too weak or old. Use a more concentrated developer or add less bromide. A strong, fresh developer permits the use of more bromide than a weak one, without producing greenish blacks. 749, Grayish Whites.--If there is not enough bromide in the developer, the whites will turn gray. Add a few more drops of a 10% solution of bromide. If the print is under-printed and forced in development, it will cause grayish whites. Using old paper will cause grayish whites, or it is also possible that the paper has been fogged by white light while printing or during developing. 750. Brownish Blacks.--If the developer has become old and discolored, or too warm, you are likely to produce brownish blacks. Developer exposed to the air will oxidize and then produce brown IV--r4 227 ish blacks. This is also caused by using developer too weak. This may also be due to over-exposure, an excessive amount of bromide, or an old or incorrectly compounded developer. Never use developer after it has...
| ISBN-13 | 9781151995391 |
|---|---|
| ISBN-10 | 1151995398 |
| Weight | 0.65 Pounds |
| Dimensions | 9.00 x 6.00 x 0.45 In |
| List Price | $20.68 |
| Format | Paperback |
|---|---|
| Pages | 196 pages |
| Publisher | |
| Published On | 2010-01-01 |
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