Developing black and white film without using stop bath?

[SilverInversion]

I know what it looks like; I meant it in the sense of seeing if anyone ever gets it. Dichroic fog is green when viewed by reflected light and red with transmitted light. I don't doubt that this might be dichroic fog, but it doesn't look like it to me. The easiest way to generate dichroic fog is to develop in very old Rodinal at 1+25 and try to fix it immediately with no rinse in exhausted superfix. That was how Kodak's training materials were generated.

It is dichroic fog. It's fine metallic silver deposited on the film and it's removed by the swab that gets black (--> silver).

 

[Valkir1987]

If a fixer is exhausted, you don't get dichroic fog and you don't ruin the picture as you can always refix in fresh fix as long as it has not been exposed to light.

I got this fog using expired Rollei Supergrain. Someone with a lot of experience in developing and chemistry looked at the ingredients and said the developer contained chemicals that are usually found in fixer.

Still, whether you use a stop bath or not; depends on your personal experience and preference. Some manufacturers do, others don't. Amaloco once recommended it for short developing times. I start doing so in combination with a neutral fixer which works great for me. Fresh chemistry is always recommended.