The Hero 3 has a fixed focal length, reported to be 27.7mm.
The Sony does not have a fixed lens, so you will be able to get a better choice of lenses for the adventure, such as a fixed focal length 85 or 135mm.
It also shoots in RAW mode, which depending on your use, would be very important.
Removed door with simple bubble mount on the camera would probably suffice
Edit: approx field of view calcs
135mm at 1000 feet= 178' (x) and 118' (y)
85 mm at 1000 feet= 282' (x) and 188' (y)
with the Hero 3 you could fly at 400' to get a 300' (x) and 200' (y) but with much more distortion at the edges...
Last edited by FlightPathOBN; 28th May 2013 at 17:58.