Tamron 17-35mm f/2.8-4 DI OSD Lens for Canon EF

Product Highlights
* EF-Mount Lens/Full-Frame Format
* Aperture Range: f/2.8 to 22
* Fluorine and BBAR Coatings
* Optimized Silent Drive AF Motor
* TAP-in Console Compatible
* Leak-Proof Lens Seals
* Rounded 7-Blade Diaphragm