A few months ago when I tried to use an older lens (80-200) the d800 would stop it down all the way and the camera wouldn't move the aperture at all. I could move it manually and use it for video, but I could only take photos at f22. All other lenses worked fine. Now it is doing this to any AF lens that is older than the G series. The original lens that had this problem was sent into Nikon 3 months ago. They said they fixed it for $300, but they still haven't sent it back or said what was wrong with it. I have a few major shoots coming up and will need all my lenses for it. Any suggestions?