Alpa offers an adapter that allows one to use Rollei 6000 series lenses on their cameras. That should tell you something about the Rollei lens quality. The adapter works very similarly to the Rollei Lens adapter ring for the X-Act2. Incidentally, the lenses with largest image circle in the Rollei lens line up are 150mm APO Macro PQ bellows lens, 90mm APO Macro PQS, and 120mm f/4 Macro - more or less in that order. All of those lenses will support significant movements on technical cameras.