Hello I am having the same problem only instead of shifting the vray camera is zooming in. I tried everything, my focal length are the same in the viewport and the physical cam the aspect ration and pixel points are locked the zoom factor ios set to 1. however if I change it to 0.2 sometime 0.5 i am getting the same zoom as the viewport. for outdoor renders zoomfactor:1 is working. for indoor no. I checked the origin its in the middle of my model however note that I changed the cplane location several times does that effect the origin ? please let me know if you can help as soon as possible thank you so much.