Conclusion: Slow focus and sometimes in and out focus for few sec in video recording most of time. Start recording with out of focus, and it stays out of focus a few sec like it has in sleep. Press refocus again to wake up the autofocus, and it is then focus in and out over 5 sec in recording. What a joke Canon ! I have to use manual focus in shooting video. You must come out new firmware to fix the problem or you are losing a good name !