Tokina's constant f/4 full-frame ultra-wide zoom — 17-35mm at budget price for landscape photography.
The Tokina 17-35mm f/4 AT-X Pro FX is a budget constant-aperture ultra-wide zoom for full-frame DSLRs. It provides the popular 17-35mm range at f/4 constant — more affordable than f/2.8 alternatives from Nikon, Canon, or Sigma.
Optically good for the price — sharp in the centre with acceptable edge performance at mid-apertures. Constant f/4 aperture maintains consistent exposure. One-touch focus clutch for instant MF/AF switching. Multi-layer coatings for flare control.
Available for Canon EF and Nikon F mounts. 82mm filter thread. Approximately 600g. No weather sealing. Full-frame coverage. Minimum focus distance 28cm. Internal focus design. AT-X Pro build quality.
Available used at budget to mid-range prices. The constant f/4 is practical for landscape where f/2.8 is rarely needed. The Nikon 18-35mm f/3.5-4.5G is lighter and wider. The Tamron 17-35mm f/2.8-4 is faster. For budget full-frame ultra-wide landscape shooting.