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CHAPTER XIV
Duplication of Tri-pack Color Films
Years ago when color in motion pictures was just a matter of scientific speculation, Thomas A. Edison expressed the thought that the combination of color and sound in motion pictures would represent the highest pinnacle in motion picture technological achievement. By Edison's criterion, it would appear that we have already arrived at that millennium.
As in the case of prior arts, the daydreams of the pioneers became the realities of a later day. The embodiment of a daydream usually brings forth new problems that must be solved in turn. We may view this as the secondary stage in the development of an art. And so it is with integral tri-pack color films ; they are entering the stage of application and intensive secondary technological improvement.
The idea of multilayer films for color purposes traces back to the earlier stages of the motion picture long before sound became a commercial feature. The dye-coupler concept likewise harks back to an early time ; its potentialities were appreciated to a remarkable degree as early as 1907. The names of Homolka, Lewy, and Fischer will be remembered as early pioneers with vision.
It has taken a long time for the processes described by these investigators prior to 1914 to become commercial realities. Just as the photoelectric cell had to wait for the coming of electron tubes and amplifiers before sound films could be commercialized, the integral tripack color films had to wait for suitable dyes and other chemicals. As in other fields of invention, each new discovery added to the total store of knowledge and, in turn, each new discovery was found to have its limitations. It appears that there is no solution that will meet all the requirements of an " ideal" color process; there is no "perfect" film or "perfect" process.
Kodachrome Processing and Duplicating: Some History
Additive processes such as the old Kodacolor process gave way commercially to substractive processes. No filters or other gadgets are needed for either camera or projector when integral tri-pack subtractive color films are used; this was considered a "must" for color film for the
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