I just picked up a SW612 and a Rodenstock 55mm - f4.5 APO Sironar Digital lens. I debated about the lens, but the more I read, I felt like I was hedging my way to a digital back, when I can afford a P45 someday, and Kodak decides finally they aren't interested in distributing the lovely Kodak Portra 160 for 120. Anyways, the image circle for the 55mm Sironar Digital says its 125mm, so it should cover a 612 film back, but everything I have read, states that there is fall off on the edges. Anyone have any experience with any of what I am describing ? One thing that I hear over and over, medium format glass tends to out resolve LF lenses. I get that the Mamiya 7 is pretty much tops in that regard. I went with the Rodenstock Digital, because somewhere I read that Rodenstock improved their digital lenses to deal with that digital backs can accommodate higher resolution than film. Sounds promising. I might be able to get tack sharp images on a film back with a lens that is really meant for digital. Or have I gone and made an expensive experiment into an obscure setup. I rarely read any personal experiences with a Horseman 612 and Rodenstock Digital lenses, or much about the Horseman SWD. Sounds pretty out there, whether the medium is film or digital. Would love to here if anyone has anything to pass along, focusing tips, filters, anything really, maybe something reassuring with my recent endeavor. I do like wides, and I have been patiently looking to get into 6x12 or 6x17. Diving into the deep end of panoramic , albeit probably doing it all wrong.