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Kodachrome is a very different process from other color films. (going from memory from years ago when I dabbled in color wet-chemistry darkroom work) Most colo
by dbcurtis 5y ago
Kodachrome is a very different process from other color films. (going from memory from years ago when I dabbled in color wet-chemistry darkroom work) Most color transparency films have color-couplers linking the silver salts to dyes that are in the unexposed film. Kodachrome, as I recall, had no dyes in it as shipped from the factory. Just three layers of silver salts with different wavelength-response curves. The archival color dyes were implanted into the emulsion at processing-time. The Kodachrome process is very complex and was never approachable for home darkroom work.
- js2 5y agoThat’s correct. My dad owned a darkroom business/photoshop for years and we had a nice home darkroom. Kodachrome could only be developed by Kodak and I think one independent business that bought the necessary equipment from Kodak as they were winding down Kodachrome: https://en.wikipedia.org/wiki/Dwayne%27s_Photo https://en.wikipedia.org/wiki/Dwayne%27s_Photo Kodak simplified the Kodachrome development process over the years, but it was never viable to do at home. Honestly, anything but B&W and E6 was a PITA to do at home. Even the color negative process (C-41) was annoying at home due to the extra chemicals and temperatures required. https://www.reframingphotography.com/content/processing-images-c-41-color-negative-film-processing https://www.reframingphotography.com/content/processing-imag...