METHOD AND MEANS FOR PRODUCING FADE-IN AND FADEOUT EFFECTS WITH MOTION PICTURE CAMERAS

摘要

A motion picture camera with automatic dissolving shutter wherein the takeup reel for exposed film is rotated at a reduced speed for a first interval prior to and for a second interval during exposure with fadeout effect so that it collects during the two intervals only that length of film which is exposed during the first interval prior to fadeout. The film which is exposed during fadeout is stored in the space surrounding the takeup reel and is subsequently transported rearwardly to be stored in the space surrounding the supply reel. The once-exposed film is thereupon withdrawn from the space surrounding the supply reel and is exposed for the second time with fade-in effect while the takeup reel rotates at normal speed to collect such film at the rate at which it is transported by the pulldown. A timer which is started in response to reduction in the speed of the takeup reel actuates the dissolving shutter motor to start the fadeout effect after elapse of the first interval and arrests the pulldown and the drive for the takeup reel after elapse of the second interval.