I will try to do the same, taking pictures from my 56 Corvette. It will be recommended to use only the ATTI P-mode with low battery?? Or do the whole flight in P-Atti, there will be no RTH right?
The IOC Point of Interest (POI) mode will it be, if it will come, I hope so. Where you can fix a point and the camera will stay fixed on it. Even you turn around the object. A very professional tool!