When judged against the highly regarded $849 Tokina AT-X 16-28mm f/2.8 PRO FX and this model’s predecessor, the $610 AF Zoom-Nikkor 18-35mm f/3.5-4.5D IF-ED, this lens easily outperforms them in Sharpness. In fact, with a score of 17P-Mpix it matches the AF-S Nikkor 14-24mm f/2.8G ED. But this is not just about improvements in acutance and resolution levels. The most surprising aspect in a lens this wide is the consistency of sharpness across the frame. In fairness, the Tokina is the more extreme lens, being both ‘wider’ and ‘faster’, but there’s little doubt of the superiority of this lens over the earlier iteration.