Black and White Developers
From Phot-O-Vergne Wiki
Black & White developers
Dozens of formulas exist for B&W film and paper developers. Some of them are very exotic. Most of them produce comparable results. And a handfull of developers are bestsellers, based on the same formulas, but sold under different brands and names.
For commercial reasons some companies keep their formulas secret. But there isn't such a thing as a wonder developer that excels in every domain. Developers have to be chosen for specific results.
A choice of formulas in the public domain is listed here:
