Society of Motion Picture Engineers : incorporation and by-laws (1919)

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Motion/* we have a certain background of discovering and fof^ getting and re-diScovering which will not permit any one at the present time to say that adding color to motion is an entirely new science. In the British Journal of Photography, December 6, 19 12, Mr. H. Quentin, referring to screen plates says, "And thus it is that in screen plate color photography the chief merit consists not in inventing a screen, but in producing it commercially." In the making of Prizma pictures in natural colors, the industry with which I have been mainly identified for a number of years, our problem has been largely one of devising means and developing processes that would make motion pictures in natural colors commercially^ practicable. In a report for the Society of Chemical Industry in 19 16, Mr. B. V. Storr, of the Ilford Company, London, said, "A number of patents have been published both for multicolof screens and for various details in the production of positives. In the latter, apart from the mechanical difficulties of registration, the chief problem appears to be to get a method of coloring which will give a uniform tone throughout the length of film." We had considered for some time that other steps were of more importance in the making of Prizma films, but we found at last that our main stumbling block in making the present product finally proved to be the matter of coloring. The successful making of small pieces of film by the known methods used in photography for toning or the patented descriptions of coloring methods were found to be impracticable when applied to the commercial handhng of films in long lengths, so it became necessary to work out a new method and means for coloring. This we successfully accomplished. Our problem contained several elements that required the development of new processes in order to accomplish the result of CO oring long lengths of film commercially. The film may be 200 feet long, in which length, as you know, there are 3200 separate color transparencies, all very much alike with the exception of those parts showing the steps of movement. To make each picture exactly like the next and to duplicate the copies so that they are all alike, was the problem that had not been satisfactorily solved before. In letterpress printing, if the copies vary, no damage is done, as one seldom sees many prints together for comparison and the poor ones are discarded. ■ With motion pictures there is not so much chance for discarding individual pictures, for if we did the film would consist mostly of patches. This problem was overcome, and film has been produced in quantity, so that each individual image-bearing area is substantially complete in colors which may be seen by holding the film in the hand. COLOR RENDITION I read that, "It is not possible for anyone to explain how or why we see colors, and probably it never will be." We have our theories 77