Overview

The Tokina atx-i 11-20mm f/2.8 cropped frame (CF) is designed for an improved user experience. The constant f/2.8 aperture lens provides excellent edge-to-edge sharpness and resolution. Reduces flare and ghosting, while maintaining excellent contrast and color. A new waterproof top coat also makes it easier to clean.

Cinematography
Popular among cinematographers too, because the lens provides a wide cinematic feel, minimized breathing, no edge distortion while panning, and the overall weight and internal focus design make it an ideal choice for gimbal work.

Advanced Optical Design
The Tokina atx-i 11-20mm f/2.8 CF incorporates a complex optical design, with 14 elements in 12 groups. The proprietary optical design uses three aspherical lens elements (2 all-glass molded and 1 P-MO hybrid) to achieve superior contrast and sharpness, as well as correct for spherical aberrations.

Additionally, Tokina uses three super-low dispersion (SD), “FK01” and FK03”, glass elements to control chromatic aberrations. The lens provides super-low distortion and low light fall-off for straight lines and minimal exposure vignetting, excellent for architectural, landscape, astrophotographers, and cinematographers. 

Focus Ring Rotation
The directional rotation of the focus ring matches the proprietary direction of Canon lenses.