Upload & Sell: On
My Pentacon 6 (P6) adapter has only tilt, and it doesn't have a tripod mount. I posted a shot of it on Medium format to EF mount t/s adapter?.
I also have a Mamiya 645 shift adapter with P6 and Hasselblad to M645 adapters, and I'm staring to get some good results from them, but I haven't had much time recently to do any serious work with them.
I recently got a Hasselblad extension tube that I hoped to use for parts to replace the P6 mount on my P6 to EOS tilt adapter, but it won't be so simple, and so I might try the Mirex that you mentioned. I have CF versions of the Hasselblad 50/4 and 80/2.8, and also Zeiss Jena Pentacon 6 Flektogon 50/4 and Distagon 80/2.8. I suspect the Hassys will give better results on the M645 shift adapter, and if they do, I'll get the Mirex T&S adapter, and sell off the Pentacon 6 lenses. I've also been trying to get a Schneider-K Xenotar MF 80/2.8 (Exakta 66 = Pentacon 6), but they're scarce and expensive, although they have new ones at B&H for $800US.
Regardless, I'll keep the M645 shift adapter for use with a Mamiya 645 C 35/3.5 N. I'd like to compare this Mamiya with a SMC Pentax-A 645 35/3.5, but unless I can get the Pentax on a shift adapter, it's not worthwhile for me, as there are many other great options for a "straight-up" f = 35mm lens on a 5D.