Tokina AT-X 16-28mm f/2.8 Pro FX Lens for Canon

The Tokina AT-X 16-28mm f/2.8 Pro FX is an ultra-wide-angle zoom lens designed for full-frame Canon EF-mount DSLRs. Featuring a fast, constant f/2.8 maximum aperture throughout its focal range, this lens is built for landscape, architectural, astrophotography, and interior photography. Its optical design utilizes large-diameter aspherical and SD (Super-low Dispersion) glass elements to minimize distortion and optical aberrations. Equipped with a silent DC autofocus motor, a GMR magnetic AF sensor for accurate focus tracking, and Tokina’s signature One-Touch Focus Clutch mechanism for rapid switching between auto and manual focus, it delivers professional-grade wide-angle imaging performance.

Key Features and Specifications

* Fast Constant f/2.8 Aperture: Maintains an f/2.8 aperture across the entire 16-28mm focal range for enhanced low-light capability and depth-of-field control.
* Full-Frame Coverage: Designed for 35mm full-frame Canon EF-mount sensors (also compatible with APS-C sensor bodies at an equivalent focal range).
* Advanced Optical Construction: 15 elements in 13 groups, including a 56mm front aspherical element, two rear aspherical elements, and three SD (Super-low Dispersion) glass elements to suppress chromatic aberration and field curvature.
* DC Motor with GMR Sensor: Features a quiet DC motor paired with a GMR magnetic AF sensor for responsive autofocus performance.
* One-Touch Focus Clutch: Allows instant toggling between Autofocus and Manual Focus by sliding the textured focus ring forward (AF) or backward (MF).
* Integrated Lens Hood: Built-in petal-style lens hood protects the bulbous front element and helps prevent flare.

Condition and Included Accessories

* Included Accessories: Front lens cap and rear lens cap included.

* Optics: Internal dust particles present between glass elements (does not noticeably affect image quality under standard shooting conditions).

* Autofocus Operation: Autofocus functions as intended, though the internal AF motor operates with a slight audible noise.