Hi- I've got a 70-200 f/2.8vr on a D300. In reviewing some photos from a shoot in the rain the other day, I noticed alot of soft focus with the focal point right of center at f/3.2. It does not look like the results you would expect from a $1,800 lens, but then again, maybe my expectations are too high. I ran some tests today, and it looks like with the VR on, while looking through the viewfinder, the image in the viewfinder moves around and actually causes a blur/halo at shutter speeds of 1/13 and slower. When I turn off VR, the movement in the finder and blur in the image goes away. I tried again with VR on and bumped it down to f/10 and it also goes away. Does anyone have any experience with the effects of VR actually causing motion shake? This is the only 70-200 f/2.8 lens I've ever tried, and I'm unsure of exactly how sharp this thing should be. Lots of people say it's the sharpest lens they make, but all my other lenses (Nikon 10.5, Tamron 17-50, etc) are sharper at 2.8. Are there further tests that anyone knows of to see if it needs to be recalibrated? I will have to say that in 3 hours of shooting in heavy rain/snow with the camera exposed at all times, it worked perfectly and the lens hood did a good job of keeping the lens free from moisture till near the end of the shoot. Next time I will be wrapping the hood/lens interface with tape to prevent all moisture from getting in there. I'm amazed that we can shoot in these conditions without damaging the equipment. That is the exact reason I bought this camera and lens. Thanks!