> Well, put bluntly, the reason is that you probably are not using the Nikon properly. Probably one of the biggest mistakes people make: not understanding at w

> Well, put bluntly, the reason is that you probably are not using the Nikon properly. Probably one of the biggest mistakes people make: not understanding at what aperture their lens is sharpest - typically stopping the lens down too much. Other mistakes: not using a fast enough shutter speed to eliminate blurring from mirror slap (or using anti-mirror-slap features in their camera), not using a sufficiently sturdy tripod and mount, and so on. Also, sometimes lenses just don't leave the factory in very good shape. If you struggle to get sharp results, it may be beneficial to send it in for service. The stuff sent around to reviewers has been obsessed over by the manufacturer, perfectly tweaked on a lens testing bench to get it as close to perfect as they can.