Excellent seeing in Brisbane last night. Had finished work and gave Saturn another shot. Attached is an original capture size stack, a downsampled one, and an RGB study of the planet, the capture method (one thumb required for tracking), and the camera, and a closeup of an attempt to enhance the hexagon, and a spherical projection of the pole simulating an overhead view.
Canon EOS 600D, 5x Powermate, teleconverters, 12" SkyWatcher Goto Dobsonian, manually tracked, 2.5 minutes video crop mode.
Video of capture process and tracking:
http://youtu.be/WCblwAye7mw
Thanks for looking,
Tom