I'm sure that's 4x5, of course, but tonality like it is very rare for me from digital capture. Even at that size. Obviously, I don't own DMF, but I can't say anything I see posted here from DMF has that look either.
Maybe few posters who use DMF do black/white...
In the end, it's all down to the magic of real estate, and having spent too many years printing 4x5 and larger in my industrial epoch, I can vouch for the fact that even from expert printers there is something absolutely unmistakeable about the different formats at similar print sizes - even an 8x10 print reveals the naked truth. Whether such a test can hold via the Internet or not, I can't say.