SUBJECT INDEX 



Abbe apertometer, 776-779 

 Abbe number, of glass, 40 

 Aberration, chromatic, 28, 30-31 



spherical, 28-30 

 Acceptance angle, in photoelectric exposure 



meters, 255 

 Achromatic lens, 30-31, 37 

 Actinometers, 249 



Additive-color process {see Color processes) 

 Adurol, 322 

 Aerial photography, 708-732 



contour mapping, 729—731 



laboratory operations, 720—721 



oblique pictures, 715-716 



rectification in, 722-723 



requirements of, 708-714 



vertical pictures, 716—720 

 Aerocartograph, 731 

 Agfa screen color plate, 655-656 

 Airy disk, 25 

 Amidol, 324, 335, 337 

 Aminophenols, 322 



P-, 334 

 Anaglyphs, 583-584 

 Angle of view, 5 

 Antihalation backings, 124-125 

 Apertometer, Abbe, 776-779 

 Aperture, of microscopes, numerical, 773-775 

 Aperture and exposure ratio, 19-20 

 Aperture ratio, measurement of, 20 

 Aperture stop, effect on exposure, 219-220 

 Arc, light-distribution diagram of high-intensity, 



692 

 Artigue printing process, 493 

 Astigmatism, 28, 32-33 

 Astrometry, 750 

 Astronomical lenses {see Lenses) 

 Astronomical photography, 733-761 



exposures for, 747-748 



lenses for, 737-741 



measuring photographic plate in, 750-751 



mechanical aids for following celestial objects, 

 736 



mountings for, 736 



photographic plates for, 744-747 



B 



Back focal distance, 16 



Barium glass, 40 



Barrel distortion, 31 



Bausch and Lomb (see Lenses) 



Bell and Howard photometer, 249-250 



Bellows, effect of extending, 20 



Binocular vision, 577 



Bleach, catalytic, 150 



Blisters on negatives, 529-530 



Box-camera shutter, 98 



Brightness, of optical images, 18 



Bromoil printing, 497-505 



Buffers, 340 



Bunsen and Roscoe, reciprocity law of, 128 



Cameras, 68-96 



accessories for, 80-93 

 view finders, 80-82 



adjustments in, 78-80 



for aerial photography, 712-714 



basic elements of, 68-69 



box, 71-72 



color-photography, 624-629 



Contaflex, 76 



Contax, 76 



as enlargers, 434 



Exakta, 76 



folding, 72-73 



Grafiex, 74, 78 



hand, 73 



high-speed motion-picture, 766-768 



identification, 78 



as integrated units, 5-6 



Leica, 76 



miniature, 75-78 



motion-picture, 680-685 



optical and mechanical requirements for, 76, 78 



panorama, 78 



pinhole, 25-26, 69-71 



Recordak, 77, 78 



recording, 78 



rectifying, 722 



reflex, 71, 74-75 



Robot, 78 



roll-film, 72-73 



Schmidt, 740 



sequence, 78 



single-exposure high-speed, 762-765 



Speed Graphic, 73 



stereoscope, 78, 579-580 



studio, 73-74 



Twentieth Century-Fox silent, 682 



Ulca, 71 



universal, 75 



view, 73-74 

 Camera-object relationships, 93-96 

 Carbon arcs, 285-286 

 Carbon printing, 466-474 



861 



