The Tokina atx-i 11-20mm f/2.8 CF for Canon EF is a versatile ultra-wide zoom designed for Canon crop-frame DSLRs and cine cameras. Key features include:
Great for landscapes, cityscapes, and dramatic interiors
Fast aperture for shooting in low light
Advanced optical design for high-quality images
Fast, accurate autofocus; one-touch focus clutch mechanism
Ultra-Wide Angle Zoom. The Tokina atx-i 11-20mm f/2.8 CF for Canon EF offers APS-C shooters a focal length equivalent to 17.6 to 32mm after sensor crop. This produces a field of view of 104° to 72°, making it a great choice for landscapes, cityscapes, architecture, and interiors.
Fast Aperture. The f/2.8 constant aperture throughout the zoom range gives you flexibility in low-light shooting. It also enables better subject/background separation than the slower variable-aperture ultra-wides.
High-Quality Optics. The 11-20mm f/2.8 CF’s twelve-group/fourteen-element optical formula uses three SD low-dispersion elements and three aspherical elements to produce extremely sharp, high-contrast, and color-accurate images while combating fringing, aberrations, and distortions.
Fast Focusing. This lens’s autofocus system boasts an internal-focusing design that makes for quick autofocus performance, while the One-Touch Focus Clutch Mechanism quickly switches between autofocus and manual-focus modes with a simple slide of the focusing ring.
