Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . orm is suited for stand development in a vertical most primitive method is shown in Fig. 217, the filmmerely being passedfrom hand to hand ina capacious bath madeby Gaumont It isneedless to say thatthe developed nega-tive may be intensifiedor reduced in the usualmanner. The negative, exposed, developed, fixed, and dried, is, of course, only a means toan end; a positive must nowbe made from it In this seriesof operations even more careis required than in th
Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . orm is suited for stand development in a vertical most primitive method is shown in Fig. 217, the filmmerely being passedfrom hand to hand ina capacious bath madeby Gaumont It isneedless to say thatthe developed nega-tive may be intensifiedor reduced in the usualmanner. The negative, exposed, developed, fixed, and dried, is, of course, only a means toan end; a positive must nowbe made from it In this seriesof operations even more careis required than in the pro-duction of a negative. Whenbands of any substance aresubjected to the action ofincidental strains there isrisk of irregularstretching orshrinkage, and anyerror due to thiscause is liable tobe doubled in in-tensity by the timethe positive iscompleted. Inaddition, the pic-tures should standat mathematicallyequal distancesapart, and any looseness or irregularity in the printingmay cause a variation, first in one direction, then in Fig. 215. solutions and * ** ** ** «* ** ** * «_ always a V VV V7 VV VV VV VV 77 Fig. 200 LIVING TICTURES. the other. The result is a slight want of registrationbetween successive views, giving a most annoying,irregular, tremulous motion to the picture whenprojected on the screen. Perhaps the best printingmachine for large-scale work is that devised by It will be seen from Fig. 218 that a sprocket-wheel holds the two films in absolute registration, each
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectmotionpictures
