AF problems,some ideas

I found this interesting and i think number 4 could answer a few questions for folks.

Good find Mike.

Cheers Mike, I learnt a thing or two and now have a new channel to check out.

Solid advice. I subscribed to this guys channel on YouTube. Thanks, Mike.

I enjoyed the video and gave me a couple of things to try out. One of interest was trying the group focus when I am doing Bird in flight. With the 150-600 sometimes it is hard to get a good lock on a bird and keep it. The group might be worth a try. Next time I go out I am going to try that.