Sigma 18-35mm f/1.8 DC HSM Art Lens for Canon EF

High-Speed 18-35mm Art Zoom for Canon EF

Distinguished by a uniquely fast and versatile configuration, the Canon EF-mount Sigma 18-35mm f/1.8 DC HSM is an Art-series zoom, covering wide-angle to normal focal ranges.
Separating itself from the pack, this zoom provides an exceedingly high-luminance f/1.8 constant maximum aperture, which suits the unit's use in difficult lighting situations and provides impressive depth-of-field control across the zoom range.
The optical configuration incorporates a range of SLD and aspherical priorities, which help to achieve elevated clarity and sharpness by suppressing numerous aberrations, colour fringing, and distortion.
A Super Multi-Layer Surface treatment has additionally been applied, too, which settings lens flare and ghosting for improved contrast and colour accuracy.
Balancing the optical merits, this 18-35mm additionally sports an enhanced Hyper Sonic Motor, along with an onboard focusing configuration, to promote fast, quiet, and accurate autofocus performance.
As part of the Art range inside Sigma's Global Vision range, this lens is developed to achieve genuinely notable optical performance and is ideally appropriate for creative and artistic uses.
Wide-to-normal zoom is developed for APS-C-format Canon EF-mount cameras and supplies a 28.8-56mm equivalent focal-length range.
Impressively high-luminance constant f/1.8 maximum aperture is appropriate for working in low-light situations and additionally offers increased control over the concentrate position when using shallow depth-of-field techniques.
Five Special Low Dispersion (SLD) priorities are featured in the optical configuration and help to lower colour fringing and chromatic aberrations for improved definition and colour accuracy.
Four aspherical elements are employed to help limit distortion and spherical aberrations and additionally contribute to increased total sharpness and accurate rendering.
A Super Multi-Layer Surface treatment has been applied to optics elements in order to minimize optics flare and ghosting and contribute to generating contrast-rich and color-neutral imagery, even in backlit situations.
Built-in HSM (Hyper Sonic Motor), along with an onboard focusing setup, realizes fast and quiet autofocus, which is additional complemented by an optimized AF algorithm to produce more fluid focusing performance.
The HSM additionally permits continuous manual concentrate control simply by rotating the concentrate ring at any time.
Curved nine-blade diaphragm contributes to a level and pleasing bokeh quality.
Constructed through a Thermally Stable Composite (TSC) surface for increased accuracy and use in wide temperature variations.
Additionally, a brass bayonet affords improved installation accuracy and stiffness.
this optics is compatible with the optional Sigma USB Dock for fine-tuning distinct lens characteristics and updating the unit's firmware.
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