I just got a box of tech Pan 4x5" and I am curious to know whether some of you have tried Rodinal as developer? ... Portraits ... I once tried the HC110 dil F (1:79) but that turned out stone hard..experiences?
Don't use Rodinal if you don't want the same 'stone hard' results as you got with HC-110. Some folks think these results are what TechPan is supposed to provide, but they aren't. OTOH, if you have a
very low contrast subject then normal developers aren't such a bad choice for use with TP.
The best developer is Technidol, but it is no longer made and the prices on ebay for the remaining stocks are sometimes ridiculous.
Photographers' Formulary makes TD-3 developer for use with TechPan and this may be the best commercial choice.
You can also mix up some POTA - it is a very simple developer made from Phenidone and S. Sulfite, and is the basis for all low-contrast developers designed for use with ultra-fine grain film.