Tokina atx-i 17-35mm f/4 FF Lens for Canon EF

Covering a versatile wide-angle range, the Canon EF-mount atx-i 17-35mm f/4 FF , from Tokina , is an ultra-wide zoom that is well-suited for a variety of subjects, ranging from landscape to architecture to astrophotography. An advanced optical design incorporates a series of aspherical and low dispersion elements, which suppress a variety of aberrations for improved sharpness and clarity. Individual elements are also multi-coated to resist flare and ghosting for greater contrast and color accuracy when working in bright or backlit conditions. Complementing the optics, this lens features a One-Touch Focus Clutch Mechanism for fast changing between AF and MF settings, and an internal focusing design is used for responsive focusing performance.