steveg48 wrote:
It's actually best if the camera is left in AF-C. After you set up the button,-- when you take a picture and press and release the button the focus will lock just as if the camera was in AF-S. However if you press and keep your finger on the button, the focus will continually update as in AF-C, which would be good for a moving subject.
If I remember correctly, the subjects were all stationary but the focus box kept moving all over the place. At the time i was trying for a particular part of a flower. Obviously there was operator error going on. I 'll figure it out eventually...