The Tokina at-X Pro 11-20mm F2.8 Pro DX is a professional-grade ultra-wide-angle zoom lens designed specifically for APS-C sensor cameras, offering a versatile 16.5-30mm equivalent focal range.
| Focal Length | 11-20mm |
| Lens Mount | Nikon F (DX) |
| Maximum Aperture | f/2.8 |
| Minimum Aperture | f/22 |
| Minimum Focus Distance | 0.28m (11.02") |
| Filter Thread Size | 82mm |
| Diaphragm Blades | 9 |
| Weight | 560g (1.23 lbs) |
| Dimensions | 89 x 92 mm |
It is designed for DX (APS-C) sensors. While it fits FX mounts, it will produce significant vignetting unless used in 'DX Crop Mode' on full-frame bodies.
The lens uses a large 82mm front filter thread, ideal for high-quality ND or CPL filters.
Yes, it features an internal silent drive-module (SD-M) that allows it to autofocus on Nikon bodies that do not have internal AF motors, like the D3000 and D5000 series.