Quote Originally Posted by tkamiya View Post
I wonder how Kodak solved these two problems....
To get some perspective look at this catalog of photo chemicals from some German supplier, and take note that Kodak most likely has a stash of muchmore convoluted and obscure and diverse compounds ready to use but which they won't trade publicly. If you can formulate and make modern fine grain ISO 400 color negative film, formulating one part D-76 is trivial in comparison.

This likely means we can't do this in our kitchen with supplies form Artcraft and Formulary. Sometimes we amateurs have to improvise, and mixing D-72 from two or even three powder parts and water seems not that much of a hassle.