Hi,
The P45+ back I have can be mounted both horisontally and vertically on the Blad. It is a bit of a hassle of course. Some Aptus backs could rotate the sensor.
Just to say, it seems that prices on used backs of older generations are falling and old "Blads" and lenses are cheap.
Best regards
Erik
The Mamiya Rotating Back RB-67 overcame the problem of having to somehow rotate the entire camera. Just rotate the back that held the film yet the camera does not have to be mpved on the tripod. It was a neat solution to the problem. Of course, the penalty for this ease to get a 6x7 is the camera is heavier than a Hassie or TLR.
