I’ve met Volker in Germany once during Photokina and he’s a nice guy. It’s great to see his article on the Rolleiflex 6000 system which is very detailed, but omits a few things about lenses he hasn’t used. The 90mm APO macro lens by Schneider, the 180/2.8 Schneider, and the 60mm Schneider Curtagon are all missing from his report and personally I think these lenses are some of the jewels of that system. If he liked the 150mm Sonnar for portraits then he’d absolutely love the 180/2.8 Schneider. He’s using an older version of the 6008 which has red led display, but the 6008 Int2 and 6008AF both have LCD displays with more information and both came fitted with a better focusing screen, the High D. He doesn’t detail much about macro work, but the Rolleiflex system has a huge number of macro accessories – perhaps more than any other medium format system. Still it’s a great overview of the camera from a working pro. You should read it.
Owning 35mm, medium format and 5×4 inch monorail cameras, the Rolleiflex 6000 system is, for me, something of an ideal compromise.