Herbert Thomas Kalmus was an American scientist and engineer who played a significant role in developing color motion picture film. Kalmus was the co-founder and president of the Technicolor Motion Picture Corporation.
Kalmus in 1936
Technicolor is a series of color motion picture processes, the first version dating back to 1916, and followed by improved versions over several decades.
"Technicolor is natural color" Paul Whiteman stars in an ad for his film King of Jazz from The Film Daily, 1930
A frame from a surviving fragment of The Gulf Between (1917), the first publicly shown Technicolor film
A frame from The Toll of the Sea (1922), the first generally released Technicolor film, and the first to use a two-strip subtractive color process
A frame enlargement of a Technicolor segment from The Phantom of the Opera (1925). The film was one of the earliest uses of the process on interior sets, and demonstrated its versatility.