redisburning
Well-known
The closest lens I can think of for an SLR to what you're talking about is the Rokkor 58mm f/1.4. (I have no knowledge of the religiously worshipped f/1.2 version...). Another lens that, as you stop down, sharpens considerably from a dreamy wide aperture look is the Ai-S Nikkor 50mm f/1.2. I love that lens. Of course now you have a Hasselblad so fugget about it.
both of these are front focused (my fault, this was my first day with this lens), so please keep that in mind. this lens is actually fairly reasonable at f1.2. these are just so you can get an idea of how this lens does people wide open. if you look where the plane of best focus is you'll see that it's better than acceptable wide open, it's downright usable:

Untitled by redisburning, on Flickr

Untitled by redisburning, on Flickr