Hello, I borrowed a classmate's new C33 and 80mm lens to test it out for him and make sure all was Kosher. He and I now have twin cameras (purchased from the same place as well). Everything seems to work mechanically. However, there is one huge problem with the camera: It is focusing the taking lens *behind* what appears in focus on the ground glass. Obviously the closer and the more wide open it is the worse it is. My first thought was that the focusing screen is tweaked or incorrectly shimmed. It is, indeed, shimmed, with small brass washers on the rear and thin strips of black paper in front (looks OEM or at least professionally done). Mine has the same shims, however, and focuses fine. The proper back for the film used is in place. We both have 120/220 models with both back doors. Any thoughts? Thanks in advance.