If he's using medium format digital, then that's why he gets the quality he does. To me, the hallmark of the 'digital look' was the poor resolution; too many people make large prints from relatively low-res digital SLRs, like the older 6 and 8mp models, and that looks horrid. The medium format backs out now are incredible and have resolution exceeding medium format film. I doubt he had to do any photoshopping beyond the usual adjusting of contrast and dodging and burning we'd do in the darkroom (you have to do that stuff to digital photos too, straight from the camera they're never perfect).