>>3584315this is delta 100 at 400, I'm happy with the contrast. The results I have from pushing fp4 to 400 and 800 aren't great. Tmax 100 also looks pretty good at 400, haven't gone further. I suspect with the right dev routine, you can get reasonable results at +4 stops. +3 stops seems to be fine for t-grain films especially. I have been shooting most of my fp4 stock at 200 for the extra contrast.
