I use Kodak TechPan, developed in Technidol. This film is slightly more difficult to handle than APX25, because it is thinner. Kodak recommends EI 25 for its starting value, and I have found that to work quite well. If you pull this film, you will have to use much shorter times. You'll have to experiment with it. (I didn't experiment enough with my first try at pulling, so now I will experiment with Kodak Farmer's Reducer) There are also alternate developers which will yield faster speed ratings.(posted 8644 days ago)I was reading one photographer's web site, and he said that he had found Tmax 100 in Xtol to be nearly as fine-grained as TechPan.