Deleted member 17706
What exactly are these fast moving scenes, specifically, that you feel the camera is not cutting it?
I could never get AI Servo (autofocus tracking) to produce decent results when I used a t4i as a beginner, so moving subjects were pretty much out of the question for me. Maybe I just had a bad unit or couldn't wrap my head around it. I've never had any trouble with mirrorless cameras and phase detect auto-focus systems, though.