The Tokina 11-16mm f/2.8 Lens is an ultra wide-angle zoom lens perfect for landscape or cityscape photography. The fast f/2.8 aperture provides decent low-light sensitivity. 

Not many lenses can guarantee optical quality at wide-open apertures, but that's one of the things the Tokina 11-16mm f/2.8 does so well. 

It also boasts a super-fast auto-focus system and a one-touch focus clutch mechanism incredibly speedy switching between auto-focus and manual focus. 

Water-resistant coating is applied to the front of the lens through an evaporating process, providing protection against water or oily substances. 

As far as super wide-angle lenses go, this lens is a winner. Its sleek, durable, and compact design make it a smart choice.