[dbcurtis]

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]

That’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

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-imag...