Yeah, I think this can get really confusing...
ie, is a fall of the back (or a rise of the lens) a '+' or a '-'
and then we are told that when you flip your back to portrait mode, you need to switch your X and Y coords.
To me, it doesn't actually seem to be working consistently - well at least with the Rod 32. On one capture (portrait), I flipped the X and Y's and used a negative for the fall (so on the X) and everything was perfect.
On different capture, with almost exactly the same movements, it was all wrong like this. I returned to the Fall being a - on the Y and things look pretty correct, but not perfect.
Buildings aren't forgiving, so you can see if the distortion correction isn't working.
I don't think Phase have dialed this in yet, and I'm personally getting a little frustrated - I might just go back to the Alpa plug in and do that as a last step I think.
Has anyone else had experiences like this?
Andrew