SUBJECT INDEX 



863 



Development, formulas for, 363 



hand-agitation, 354 



hardeners for, 343-344 



high-temperature, 372 



induction period in, 348 



influence of agitation on, 353 



inspection methods of correct, 358 



Mackie line, 362-363 



organic compounds for (table), 329-333 



physical, 318, 373-374 



preservative, 337-339 



process of, 368-369 



quantitative studies of, 348-350 



rapid processing, 373 



reduction potential, 337-338 



restrainer, 341-343 



reticulation, 363 



reversal, 372 



roll-film, 370 



silver halide solvents in, 344 



squeegee, 355, 356 



stagnant, 354 



tank, 355-357 



teaspoon, 335 



technique of, 351-377 



temperature control in, 351-353 



theory of, 318-350 



time-temperature, 359-360 



toning by direct development, 454-455 



tray, 354-355 



tropical, 344 



two-solution processes, 340 



velocity constant, 337, 348 



windshield-wiper methods in, 355 

 Development fog, 518-519 

 Diffraction, X-ray, 831-832 

 Diffusion, 439 

 Diffusion attachments, 23 

 DIN speed system, 192-193 

 Diphenal, 324 

 Distance, back focal, 16 



hyperfocal, 25 

 Distortion, 28, 31-32 



barrel, 31 



correction of, in enlarging, 440 



pincushion, 31 

 Documentary photography, ultraviolet, 600-602 

 Dodging, 438 

 Dolly (rotambulator), 684 

 Drying, 407-409 



by alcohol and ether, 408 



curling of prints in, 409-410 



prints, 409 



(See also Fixing, washing, drying) 

 Dufaycolor film, 147, 656-659 

 Duratol, 324 



Duxochrome, 648-651 ^ 



Dye toning, 463-465 

 Dyebro color process, 645 

 Dyes, basic, for toning, 464 



types of, 126 



E 



Eastman wash-off relief, 640-643 

 Eherhardt effect, 362-363, 754-755 



Eclipse photography, 759-761 



Eder-Hecht speed rating, 192-193 



Eikonogen, 326 



Elon, 335 



Embossing prints, 446 



Emulsions, choice of negative, 133-134 



in color photography, 148-149 



double-coated, 124-125 



grain structure of, 118-119 



hyperpanchromatic, 131 



negative, 130-138 



orthochromatic, 131 



orthopanchromatic, 131 



overcoated, 125 



panchromatic, 131 



photographic, 116-122 



physical properties of, 120-121 



positive, 138-146 



resolving power of, 23-24, 131 



reversal, 146-147 



spectrograms for paper, 141 

 Emulsion fog, 519-520 

 Emulsion speed and contrast, 132-133 

 Emulsion supports, 121-125 

 Enlarger, camera as, 434 



condenser, 430-432 



diffusion, 432 



fixed-focus, 429 



variable-focus, 429-430 

 Enlargement, depth of focus and, 25 



measuring degree of, 434-435 



of negatives by reversal, 448 

 Enlargement formula, 432 

 Enlarging, distortion correction in, 440 



exposure meters in, 436-437 

 Enlarging lenses, 35 

 Enlarging and reducing tables, 433 

 Entrance pupil, 18 

 Exit pupil, 18 

 Exposure, for astronomical photography, 747-748 



definition of, 211-212 



effect on, of extending bellows, 20 



effect of lamp voltage upon, 435 



factors affecting, 216-217 



methods of determining, 228 



for motion-picture photography, 245-248 



for near-by objects, 227-228 



over-, 178 



photochemical action during, 208-209 



practical considerations, 217 



spectral sensitivity bearing on, 223 



with supplementary lenses, 224-225 



with telephoto lenses, 225-226 



test-strip method of determining, 436 



under-, 177-178 



use of diaphragm aperture in determining, 239 

 Exposure aids, 228-229 

 Exposure and aperture ratio, 19—20 

 Exposure calculators, 246-248 

 Exposure devices, 208-260 

 Exposure disk, Zeiss Diaphot, 250 

 Exposure latitude, 134, 178-179 



in processing prints, 440-441 

 Exposure meters, 249-200 



Bewi Sr., 251 



