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