Stupid sounding question but I can't seem to get AF A or AF C to work right. I rarely use AF so maybe I'm missing something.
I set my D7000 to AF-A, Auto, and also tried AF-A, 3D. I was expecting the camera to lock onto a subject, then actively re-focus as the subject moved. It focuses and then nothing happens when there is movement.
For ex., tried putting my cat at the other end of the dining room table, focused on his eye, and when he moved toward me, he just got blurry and the camera did not change focus. I also tried focusing on a subject, then moving around myself, but again they just went blurry, camera did nothing.
I was interested in this focus mode for video mainly, so the camera would lock on a subject and track them while rolling. Couldn't get that to happen either, so tried using it for stills, as above.
Should the camera be actually re-focusing when the subject moves? Or have I misunderstood what it can do?