Happy to help any time Steve. I'm still learning the fine points of the D4 myself. For example, last week, I was testing to see what settings worked best when panning for birds in flight. I'm very much a "still" photographer, (That's what I get paid for.) and am concentrating on that in the D4 at this point, but I am very much looking forward to the D4's video capability with which I'm going to begin to work on fully understanding in a few weeks. That will augment my travel photography for very interesting additions in the future.