Maximum resolution is a characteristic of the film. It can, however, change with the developer. In my tests for the article "Salt to Taste" for Photo Techniques, I don't remember the issue, I compared the same film in D-23, D-23 with added sodium chloride, Rodinal with and without added NaCl and with added sodium ascorbate and found differences in resolution that were readily apparent, even though I did not measure them in lines/mm. The most satisfactory to my eyes of the ones I tested was the Rodinal 1+50 + 4 g/l sodium ascorbate.
Originally Posted by Ed Sukach
I agree that it's the photographer's choice, but I think it should be an informed choice. I think also that the same film-developer combination will not be suitable for all purposes.