Why use a Gimbal with PAN if copter can PAN?

[richparry]

Besides TILT and ROLL, a 3 axis gimbal gives you the ability to PAN. It seems to me the copter can already PAN, so why is using a gimbal with PAN control needed? My guess is the gimbal provides smoother PANs, but that is just a guess. Is it really that important to have a gimbal that PANs?

thanks,

 

[Ksc]

the 3rd axis also gives you the ability to cancel out the "pan" or yaw. If you are heading in a straight line and you hit a cross wind, you may notice the nose moves slightly. This would show up on a 2 axis gimbal but on a 3 axis, it would correct for the minor movement.

viewtopic.php?f=4&t=4334

 

[Gizmo3000]

The main benefit is that it cancels out yaw-wobble in the same way it cancels out unwanted roll and pitch movement.
plus it does also help slightly smooth out pans as well by making the slightly less harsh.
there' a Yaw Follow mode that keeps the camera facing the front of the quad

here's a little video showing how it works
http://www.youtube.com/watch?v=44ON5NDs ... 5V8DapndDM

They also allow for manual pan for advanced rigs where there's a pilot and camera person (and legs are retractible,), that way one person could be flying FPV looking forward while another is operating the camera.