1900.E2.80.931919: Towards the standard picture film Film stock



a silent home movie on 16mm black-and-white reversal double perforation film stock


agfa began produce motion picture film in 1913, remained largely local supplier until world war boycotts of popular french, american , italian film stocks allowed ufa film studio flourish, boosting agfa s orders. film stocks manufactured on nitrate film base, highly flammable. nitrate film fires difficult extinguish. significant number of fatal accidents occurred in theatrical projection booths, heat of projector lamp made ignition likely. amateur filmmaking (home movies) developed during period. kodak developed heat-resistant safety base home projection. in 1909, tests showed cellulose diacetate viable replacement base, , kodak began selling acetate-base films following year in 22 mm widths edison s work on home kinetoscope, commercially released in 1912. eastman kodak introduced non-inflammable 35 mm film stock in 1909. plasticizers used make film flexible evaporated quickly, making film dry , brittle, causing splices part , perforations tear. in 1911 major american film studios returned using nitrate stock. more amateur formats began use acetate based film, , several, including kodak s own 16 mm format, designed manufactured safety base. kodak released cine negative film type e in 1916 , type f (later known negative film par speed type 1201) in 1917. both of these orthochromatic films no faster previous offerings; improvements in granularity , sharpness.








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