Is true that you need a sharp lens to fully exploit the potential resolution of the D800. But is is also true that you need a very steady hand or a tripod and very exact focusing. Under ideal conditions this is perhaps easy, but close to full opening on the lenses you not even the camera autofocus systems is always precise enough. The focus offsets that are considered normal and can be calibrated away with settings in the camera are enough to make you loose that fantastic resolution that was so costly. Looking carefully at the images from my D800, I can see that for me the lack of sharpness can in most cases be attributed to missed focusing or camera shake, both with lenses that are generally considered as sharp and with more average lenses. The old rule of shutter speed shorter than 1/focal length was perhaps right in the days of analog cameras, but with the pixel size of the D800 it is very optimistic. Since realizing this I have gone to higher ISO settings to allow shorter exposure times The conclusion is twofold: Firstly, to get the full resolution from the D800 you need good glass and good technique. Secondly, the fact that the D800 allows supersharp pictures does not mean that the sharp but not supersharp picture is not good enough.