This Tokina 11-16mm is the world’s fastest and sharpest ultrawide lens for small format digital cameras. Considering its bargain price of under $600, its the world’s best ultrawide lens for digital SLRs.
The Tokina 11-16mm f/2.8 Lens is an ultra wide angle, short zoom range lens specifically designed for use with digital SLR cameras. The slightly shorter zoom range of this lens over the popular and award winning 12-24mm lens makes it possible to maintain optical quality even at wide-open apertures. This lens features a fast constant aperture of f/2.8, and provides a focal length equivalent to 17-25mm in 35mm format.
As part of the AT-X line, this lens is designed to provide excellent optical quality, and offers advanced features like the WR (Water Repellent) front element, its One-touch Focus Clutch Mechanism, and a 9-bladed aperture. This is an excellent lens for short closeup photography.

WR Coating
WR (Water Repellent) coating made of a special compound has been applied to the front surface of the lens through the use of a unique evaporation process. As a result, the lens offers excellent water- and oil-repellent performance and makes for easier cleaning should the lens be accidentally smeared with fingerprints or cosmetics.
One Touch Focus Clutch Mechanism
The One Touch Focus Clutch Mechanism allows for fast and easy switching between manual and auto focus from any position. This improvement means that it is not necessary to change the AF/MF switch (on the body with Nikon or the lens with Canon) every time the lens is changed from auto focus to manual focus mode.
9-Blade Aperture
The rounded diaphragm opening (9 blades) makes out-of-focus elements appear more natural.
Tech Specifications
Filter Size: 77mm
f/Stop Range: 2.8 – 22
Minimum Focus Distance: 1′ (0.3 m)
Magnification: 1:11.6
Angle of View: 104° ~ 82°
Groups/Elements: 11/13
Length: 3.5″ (89mm)
Maximum Diameter: Not Specified by Manufacturer
Weight: 1.2 lb (560g)
Some good info on the Tokina 11-16 here and check out the below video for more: