Distinguished by its particularly fast and versatile design, the Canon EF-mount Sigma 18-35mm f/1.8 DC HSM is an Art series zoom lens covering wide-angle to normal focal lengths. Setting itself apart from the pack, this zoom lens has an extremely bright constant maximum aperture of f/1.8, which is suitable for use in difficult lighting conditions and offers impressive depth of field control across the entire zoom range. The optical design incorporates a series of SLD and aspherical elements, which help achieve high clarity and sharpness by suppressing various aberrations, color fringing, and distortion. A Super Multi-Layer Coating has also been applied, which controls flare and ghosting for improved contrast and color accuracy. Balancing the optical merits, this 18-35mm also features an advanced Hyper Sonic Motor, as well as an internal focusing design, to promote fast, quiet, and accurate autofocus performance.

