Tokina AT-X 11-20mm f/2.8 PRO DX Lens for Canon EF

The Tokina AT-X 11-20mm f/2.8 PRO DX is a high-performance ultra-wide zoom lens specifically designed for APS-C sensor Canon EF-mount cameras, offering a versatile range that covers 11mm (equivalent to approximately 17mm on full-frame) to 20mm with a constant fast f/2.8 aperture. For APS-C shooters, this range represents the go-to option for architecture, landscape, real estate photography, and astrophotography. The constant f/2.8 aperture provides two key advantages: consistent exposure as you zoom and the ability to gather maximum light in dark environments such as star-lit skies or dimly lit interiors. Tokina’s PRO build quality is immediately apparent in the solid metal barrel, smooth focus and zoom rings, and the characteristic Tokina push-pull focus/manual focus switching mechanism (the One-Touch Focus Clutch Mechanism) that allows instant, tactile switching between AF and MF modes. The optical formula includes Super-Low Dispersion (SD) glass elements to minimize chromatic aberrations, ensuring clean, color-accurate images. The front element does not rotate during focusing, making the use of polarizing and graduated ND filters straightforward. Interior focusing maintains consistent barrel length throughout the focus range.