Come on guys, you're all avoiding the real issue here - CANON SHOULD BE PUTTING STABILIZERS BUILT INTO THEIR CAMERAS.
But then Canon should design bodies again.
I wonder if anyone ever designed a stabilized converter ?
One could thing about a 1.2x that would convert any lens into IS with minimum loss in IQ, angle of view and speed.
It would of course not be ideal for WA lenses, but could be a useful accessory.
But maybe this is not technically possible (or marketing wise) ?