JDM von Weinberg , Feb 13, 2009; 04:59 p.m.
If it's what I think it is, the Pentacon in question is the 6x6cm Pentacon 6 - and only you can answer whether you need such an adapter for the various P6 mount lenses. Remember that wide angle on these cameras is 45-50mm. I bought a shift-only adapter (just because the P6>EOS adapter came with the shift, and I wanted to try out my P6 lenses on my Canons) and it works fine. I have not figured out just why I would need an 11mm shift on a 180mm Sonnar, but the lens is fantastic even on the 15x22mm sensor. Tilt might be more useful for things like product photography, but mine didn't have that feature.