just had a Mamiya RZ67 Pro arrive today. It has a RZ67 ProII back but I cant get it to revolve. I have film in the camera and have taken a shot which seems to work, just cant get the back to revolve to 'portrait'.
I am sure I am just doing something silly, I have followed the steps in the manual (ie move the lever to the 'R' position) but still stuck. HEEEELP!!