I too have a D200, but my lenses are all Nikon; AF-S 17-35mm f2.8D; AF-S 28-70mm f2.8D; 80-200mm f2.8D; and a IF-ED AF 300mm f4. I have been reading all the comments about focus, technique, and optimal f-stops using the new D800. With this post I am again concerned about sharpness and other image elements. Is this kind of image challenge prevalent when you move up above 16mp on all Nikon cameras. Reason for that question is maybe the D3s is a better move-up for me versus the D800?