A manual of photo-engraving : containing practical instructions for producing photo-engraved plates in relief-line and half-tone with chapters on dry plate development and half-tone color work (1896)
Jenkins, H. (Harry), 1868- · Chicago : Inland Printer · leaf 188
at value.Property used, it is one of the most valuable aids in secur-ing perfect half-tone negatives. There are two ways ofusing this clearing solution. The first is to prepare aniodine solution : Iodine in flakes 10 grains Iodide of potassium 10 grains Water 1 ounce After the negative is… … 12 APPENDIX. it has permeated through the film, wash well, leave the waterrunning, and flow over the iodized plate a very weak solu-tion of cyanide of potassium. If it should appear to clearthe negative too quickly, thrust the negative immediatelyunder the running water. After washing examine with…
Photoengraving · Color photography
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