The history of three-color photography (1925)

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Contents CHAPTER VII Color-Sensitive Gelatin Plates 245 Cyanin, 245. The Phthalein Dyes, 248. Sensitizers for Special Spectral Regions, 252. Green Sensitizers, 252. The Eosin Group, 253. Red Sensitizers, 253. Alizarin Blue, 253. The Isocyanins, 256. Isocol, 257. Orthochrom T, 258. Pinaverdol, 258. Pinachrom, 258. Pinacyanol, 259. Dicyanin and Other Dyes, 260. Dicyanin A, 261. Pinachrom Blue, 261. Pinacyanol Blue, 261. Pinachrom Violet, 262. Sensitol Violet, 262. Mixed Isocyanins, 263. Bathing Plates, 264. Washing Plates, 265. Quantity of Dye, 266. Drying Plates, 268. Hyper-Sensitizing Plates, 271. Keeping Properties of Color-Sensitive Plates, 272. Sensitizing with Mineral Salts, 273. Screened Plates, 274. Sensitizing Patents, 275. Footnotes, 277. CHAPTER VIII Testing Color-Sensitive Plates 287 Color Charts, 287. Spectrographs, 287. Broad-Banded Filters, 287. Light for Testing, 288. Ratiometers, 289. Wedges, 292. Isopaques, 292. Footnotes, 293. CHAPTER IX Desensitizing Plates 295 Early Practice, 295. Oxidized Developers, 296. Dye Desensitizers, 296. Footnotes, 303. CHAPTER X Color-Sensitive Photometric Papers. Sensitizing Dyes . . . 306 Andresen's Methods, 306. Eders' Leuco-Base Methods, 308. Sensitizing Dyes, 308. Non-Sensitizers, 315. Footnotes, 316. CHAPTER XI Sub-tractive Processes — I 318 Carbon Process, 318. Light-Restraining Dye. 319. Lumiere's Process, 322. Printing through Support, 326. Cementing Prints, 330. Making Carbon Tissue, 331. Carbon Prints by Chemical Transfer, 337. Raydex Process, 338. Footnotes, 339. CHAPTER XII SUBTRACTIVE PROCESSES II 345 Carbon Reliefs, 345. Relief Processes — Dichromates, 346. Relief Processes — Developed. 351. Tanning by Oxidized Developers, 354. Relief Processes — Etching, 356. Footnotes, 360.