Tokina AT-X 16-28mm f/2.8 PRO FX
£700, $630 One of Tokina’s newer lenses, it’s a chunky beast designed for the professional market
A big, heavy lens, this Tokina weighs almost as much as the Nikon 14-24mm, which is the weightiest in the group. Neither is much less than a kilogram. The two lenses also share a pro feel to their build quality, a fast f/2.8 constant aperture, and weather seals on their mounting plates.
One area in which they differ is autofocus. The Nikon has ring-type ultrasonic autofocus, but the Tokina employs a ‘silent’ DC motor and GMR (Giant Magnetoresistance) module. Tokina claims this gives faster, quieter autofocus. It’s certainly true compared with some of Tokina’s older lenses, but autofocus is nowhere near as rapid or near-silent as in the Nikon 14-24mm.
This lens has Tokina’s trademark ‘one-touch focus clutch’ – essentially a push-pull mechanism coupled to the focus ring, for switching between autofocus and manual focus. It’s slicker than the system used in the Sigma 20mm lens as you don’t need to switch between AF/M on the camera body.
Handling and image quality are very good, with high levels of centre sharpness and restrained colour fringing, though corners could be sharper. The built-in hood helps to avoid ghosting but precludes the use of filters.