I have a Nikon 70-200 VR1 f2.8 where the entire image including the center is very soft, almost out of focus, at F8, at all zoom ranges, on a tripod, with VR off. I did a comparison with a friend's Nikon 70-200 f2.8 VRII, the same image, same tripod location, and same focusing points, and the difference was night a day. His lens shows details sharp, mine show details fuzzy.
Can this lens be repaired by Nikon to get sharp center images, or is the cost not worth the final result given that the lens is known to be not as sharp as the VR2?
Is there a sharper alternative to the Nikon 70-200 f2.8 VR2?