It takes a lot of messing around to get the right combination of distance and offset. The program gets confused in portrait mode instead of landscape. It makes retaking a picture awkward as it keeps hanging on to the last one. It froze up my camera requiring a restart of the app. Once all that is done, it does work ok, but by then you are getting bored and ready to move on to something else.
Northern Sage about 3D Camera, v1.5.1