Approximately never used anything larger than 35mm. I don't remember all the developers I used over the years (though I used D-76 for a lot of standard Kodak Tr

Approximately never used anything larger than 35mm. I don't remember all the developers I used over the years (though I used D-76 for a lot of standard Kodak Tri-X ISO 400 stuff). May have used some HC-110 (forget when that came in), definitely Diafine/Acufine, probably something from Ilford after I largely switched to HP-5 film, some homebrewed stuff... But it's been decades since I have done film processing. After I graduated, did a brief stint using an apartment half bathroom and drove me crazy after good school darkrooms. [ADDED: I've never used B&W film emulsions from the past 40 years or so; they're presumably at least a bit faster than what I used. 1600 was pretty much the practical limit when I was shooting B&W on film.]