I know, I know, pushing film is not recommended if you love detail in the shadows. But I really want to hand-hold my 4x5 converted Polaroid 900 and I could use an extra stop. For almost everything else I do, I shoot 400 speed film at 320 and develop at manufacturer-recommended times in HC110 B or E depending on the emulsion. (I use HC110 b/c of the ease of measuring one-time batches from concentrate.) So does anyone have a tested time for any HC 110 dilution to shoot TMY, HP5+, Berrger Pancro 400, or any other 400 speed film, in 4x5, and 800 ie. Alternately, can anyone recommend another 400 film and developer combination for this purpose. I would prefer not to use a developer that needs to be mixed and stored in 5-liter batches, for example. One-use batches from liquid concentrate preferred. Thanks for your help.