Tokina 14-20mm f/2 AT-X 142 AF PRO DX SD

(From Tokina lens literature) Kenko Tokina USA, Inc. is excited to announce the new Tokina AT-X 14-20mm PRO DX lens with super-fast f/2.0 aperture. This is the fastest zoom lens ever made by Tokina. The lens is designed for use with either Canon or Nikon DSLR cameras with APS-C (DX) sensors.

Tokina adds its fastest lens to date to its family of fast-aperture wide-angle zooms focused on providing photographers professional quality optics and construction at an affordable price. The extremely fast f/2.0 aperture lens offers an equivalent 21-30mm** zoom range.

The super-bright, constant F2.0 aperture makes viewing, auto focus and shooting possible in very low light situations while still maintaining reasonable size and weight.

The 14-20mm F2.0 has an all-new proprietary optical design that uses three aspherical lens elements (2 all-glass molded and 1 P-MO hybrid) to achieve superior contrast, sharpness, and correct for spherical aberrations. Additionally, Tokina uses four SD (Super-low Dispersion, "FK01" and "FK03") glass elements to control chromatic aberrations.

Tokina's exclusive One-Touch Focus Clutch Mechanism allows the photographer to switch between AF and MF simply by snapping the focus ring forward for AF and back toward the lens mount for manual focusing. The lens is also designed to stand up to the rigors of daily use by photographers in a wide variety of shooting conditions and environments.

** In Nikon DX (APS-C) format, equivalent 22.4-32mm in Canon APS-C format.