I'm with Chris on the Rodinal, but other will chime in and some will even advice against Rodinal for another developer. I think the shoots Chris has up speak for themselves. Years ago it was Rodinal 1:200 for me and I've heard of folks even going to 1:300(tried it too) for TechPan. I know the 1:200 worked fine for me, but you have to make sure you use enough volume/concentrate of developer since your diluting it down so much. I have a box of the liquid technidol packets that I'm saving just in case I run into some TechPan, but I'd have no problem using Rodinal if I didn't have it. JohnW