Re: Autochromes

eml@gate.net
Mon, 18 Sep 1995 10:11:01 -0400 (EDT)

The Polaroid instant-process color slide films use a principle
similar to the autochrome, but with a built-in color screen
instead of the Autochrome's random scattering of olored starch
grains on the emulsion. Of course, the Polaroid material
produces truer colors and at VERY high color saturation, but
the process does indeed share the same basic color principle.

The Autochrome is possible today. Probably the easiest way to
make an autochrome would be on sheetfilm, fixed to remove the
silver, dusted with starch grains, and covered with an emulsion
like "Liquid Light. Of course, the exposure must be made THROUGH
the colored starch grains. Then, you would reversal develop the
image.

Hope this helps!

Ed Lukacs

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