Photochemistry: Sudden Color Film

It is 14 years since the first Polaroid cameras began developing and printing their own black-and-white snapshots in a matter of seconds. Though photographers have been yearning ever since for someone to produce an equally swift, self-processing color film, most chemists agreed that the job was incredibly difficult. It seemed improbable that it would ever be accomplished.

But the very complexity of the problem was what appealed most to Dr. Edwin H. Land and his colleagues at the Polaroid Corp. in Cambridge, Mass. This week they began to market the improbable. Polacolor, a self-processing color film. Now, just 50 seconds...

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