A Motion Picture Made in 1916 by a Two-Color Subtractive Process

Glenn E. Matthews

The working principle underlying the two-color process known as Koduchrome is the use of a tanning bleach for treatment of the duplicate negative, which removes the negative image and differentially tans the area where the image existed. When the film is treated subsequently with dyes capable of dyeing soft gelatin, a positive dye image is produced.1

Print ISSN
Published
1930-11
Content type
Original Research
DOI
10.5594/J05605