Sharpness at 24mm

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The AF-S Nikkor 18-35mm f3.5-4.5 lens was attached to a Nikon Df body, which in turn was mounted on a sturdy tripod. Mirror lock-up was activated and a cable release was used to prevent camera shake resulting from tripping the shutter. The 100% crops represent about 1/400th of the total frame area.

The full frame at 24mm

The image centre is bitingly sharp from f/4 through f/8, still sharp at f11 and usable at f16.

Edge sharpness is good at f/4, and very good from f/5.6 to f16.

Aperture	Centre Crop	Edge Crop
f/4
f/5.6
f/8
f/11
f/16
f/22