Okay sorry to join in so late, I am a little fuzzy on the actual capacity of this developer and the kits available in the US. I am about to embark on a project that will involve shooting hundreds of sheets of C41 and my local lab has just quit processing C41. So my question is, what is the sheet capacity that I can expect to see coming out of the 20-Roll kit? Assuming I am using the 3010 Expert Drum with 10 4x5 sheets loaded am I only going to get 2 runs? 4? Maybe I missed the class in school where they taught 120 roll - sheet film area equivalences but if you can fill me in i'd greatly appreciate it.