Tokina's budget full-frame standard zoom — a constant f/2.8 alternative to Nikon and Tamron equivalents.
The Tokina AT-X 24-70mm f/2.8 PRO FX was released around 2013 as Tokina's entry into the full-frame constant-aperture standard zoom market. Competing against the Nikon 24-70mm f/2.8, Tamron 24-70mm f/2.8 VC, and Sigma 24-70mm f/2.8, it offered the constant f/2.8 aperture at a competitive price point from a manufacturer known for solid wide-angle lenses.
Optical performance is decent but trails the best competitors. Centre sharpness is good from f/2.8 with corners improving by f/4. Tokina's one-touch focus clutch mechanism allows quick switching between AF and MF by sliding the focus ring forward or back. Bokeh is acceptable. Chromatic aberration is reasonably well-controlled for the price class.
Nikon F mount with AF motor. Filter thread is 82mm — larger than most competitors. Weight is approximately 1,000 grams. Build quality is solid metal construction, a Tokina hallmark. No image stabilisation. The PRO FX designation confirms full-frame coverage. The focus clutch mechanism is unique to Tokina and well-liked by users.
Available on the used market at competitive prices. Check AF accuracy and the focus clutch mechanism operation. The 82mm filter thread is a nuisance as it requires larger, more expensive filters. A solid option for Nikon shooters on a budget, though the Tamron 24-70mm f/2.8 VC G2 offers better optics and stabilisation.