Tokina 11-20mm f/2.8 AT-X Pro lens review with samples (APS-C & Full-frame) - YouTube
Objektiv Tokina AT-X 11-20 PRO DX za Nikon
Tokina atx-i 11-20mm F/2.8 AF CF Plus Professional Ultra Wide Angle Zoom Lens With Water Repellent Coating for Nikon F Mount DSLR Camera (APS-C Format), One Touch Focus Clutch with Accessories (Black) : Amazon.in: Electronics
Tokina ATX-i 11-20mm f/2.8 CF lens for Nikon F-mount officially announced - Nikon Rumors