Prokudin-Gorskii's Color Images

[Dennis Southwood <dms1@home.com>]

Sergei Mikhailovich Prokudin-Gorskii (1863-1944) created color images of
Czarist Russia from 1907 through 1915.  Using red, green, and blue filters,
Prokudin-Gorskii captured black-and-white images on glass plate negatives,
which, when projected through a filtered light system, produced a single
color image. The Library of Congress purchased the glass plates from his
heirs in 1948.  They have now scanned the plates and used a process they
call digichromatography to create an exibition of color images.  The images,
along with an explanation of the process, is on line at
http://www.loc.gov/exhibits/empire/gorskii.html.  Amazing stuff!