17 Facts About Kodachrome

Kodachrome is the brand name for a color reversal film introduced by Eastman Kodak in 1935.

For many years Kodachrome was widely used for professional color photography, especially for images intended for publication in print media.

Kodachrome was the first color film that used a subtractive color method to be successfully mass-marketed.

Kodachrome is appreciated in the archival and professional market for its dark-storage longevity.

Kodachrome's Kodachrome was a subtractive process that used only two colours: blue-green and red-orange.

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Today, this first version of Kodachrome is nearly forgotten, completely overshadowed by the next Kodak product bearing the name Kodachrome.

Kodachrome gave them a three-year deadline to come up with a finished and commercially viable product.

The original Kodachrome invented by John Capstaff some 20 years earlier was two-color.

In later years, Kodachrome was produced in a wide variety of film formats including 120 and 4" × 5", and in ISO-ASA values ranging from 8 to 200.

Kodachrome transparencies have a dynamic range of around 12 stops, or 3.

Color rendering of Kodachrome films was unique in color photography for several decades after its introduction in the 1930s.

Kodachrome is generally used for direct projection using white light.

Kodachrome Commercial was available until the mid-1950s, after which Ektachrome Commercial replaced it for these specific applications.

Kodachrome has a pronounced relief image that can affect the infrared channel.

Kodachrome film has no such couplers; instead the dyes are formed on the film by a complex processing sequence that required four different developers; one black and white developer, and three color developers.

Also, processing Kodachrome film requires 8 or more tanks of processing chemicals, each of which must be precisely controlled for concentration, temperature and agitation, resulting in very complex processing equipment with precise chemical control, no small feat for small processing companies.

In 2017 the film Kodachrome premiered at the Toronto International Film Festival and featured a dying photographer, played by Ed Harris, whose son, played by Jason Sudeikis, helps him to get the last of his Kodachrome photography processed.