Hello,
In our tests of version 0.8.5, we have a doubt about the coordinates of photos.
The x, y and z are referee to the center, or is referee to the left, high pixel of photo, like a world file?
I said this, because comparing the results of original GPS data and photoscan calculated point after create marks with real control points, he have always an error that seems to correspond a half of width in X and half of height in Y.