I get "strong whobling" with the G80 (first firmware) and i think i was lossing my anamorphic atachment, but not. it was rock solid. Then i realize that new Ibis was the reason why my footage was like under drugs. Vertical axis of the lens is fixed and sensor axis are moving all the time (if handheld) so everytine change the aligment.  I think is more evident with modern IBIS and 2x anamorphic  ratios. I dont really know what focal length set manually. The same as lens? The F