Quote Originally Posted by lxdude View Post
Ok, I get it with the back. The insert side-loads, right? I was thinking of my Bronicas, where the film rails are accessible with the insert out.

Regarding the image centering, I would say it is not absolute proof that the mirror angle is off. Maybe the focusing screen and the film gate are not centered to each other. I don't know what percentage of coverage of the image a Hasselblad screen gives, but lots of cameras are around 90- 92%, giving adjustment room.
Yeah, that's the question I had too--whether the viewing screen is a dead-center arrangement with respect to the bayonet mount of the lens and the film gate. They could be all over the place for all I know. For instance on a Honeywell Pentax Spotmatic, the screen is 92% FOV and off-center in both directions. Dismal.