RE: Leveling Video Images in Flight
The reason that I ask is that while a gyro won't give you a good constant correction, it is very good at cutting the accelerations at the start of a bank or pitch change. I have used gyros in series with a CoPilot output in the past with great results on the main flight controls of a small plane. My guess is that you would have similar success on the servos aiming the camera.
Regards -