Zoom Adjustment:Manual, Features:Internal focusing system, full-time manual focusing, Hyper Sonic Motor (HSM), aspherical lens, SLD (Special Low Dispersion) glass, Sigma USB dock compatible, Magnification:1 / 4.3, Diaphragm Blades:9, Special Functions:Wide angle, zoom, Min View Angle:44.2 degree(s), Max View Angle:76.5 degree(s), Focus Adjustment:Automatic, manual, Filter Size:72 mm, Type:Wide-angle zoom lens, Min Focus Distance:28 cm, Lens Aperture:F/1.8, Focal Length:18 mm – 35 mm, Optical Zoom:2 x, Mounting Type:Canon EF-S, Minimum Aperture:F/16, Intended For:Digital SLR, Lens Construction:12 groups / 17 elements, Lens Coating:Super Multi-Layer Coating, Included Accessories:Lens hood, dust cap, lens cap, carrying pouch
Part of Sigma’s Art line of lenses,Maximum Magnifications 1:4.3
The convenience of a zoom lens with a fast aperture of a fixed focal length
Perfect for landscapes, portraits, still life and close-up photography
Internal focusing and zooming allows for easier handling.Sigma has developed special software (SIGMA Optimization Pro) that can update the lens firmware and adjust parameters such as focus.
Designed specifically for APS-C sized sensors