I just picked up a D7000 today. I'm using a 70-300 VR II with it. I have it set to Auto focus mode, full time servo, and M/A on the lens (of course). I set the focus point before I start to record video, but once I begin recording, nothing that is not on the same plane as the original focal point stays in focus - there doesn;t appear to be any attempt to adjust or indeed, "auto" focus at all. For example, I am focusing initially on a painting about 10 feet away, then moving slowly to a painting about five feet away. Unless I depress the shitter button again, as I would normally do to fix a focus initially, the second painting is and stays completely out of focus even after a few seconds.
Definetly a new DSLR video user (but not so for camcorder)... but I'd love to get some suggestions or tips on this. And I assume I should use IS on the lens? Tried it both ways but didn;t examine the resulting files carefully, as the focus thing is a showstopper. Thanks much. D