S35 - EF Mount Sigma 18-35mm F1.8

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.


Specs:

Focal Length 18 to 35mm (35mm Equivalent Focal Length: 28.8 to 56mm)
Maximum Aperture f/1.8
Minimum Aperture f/16
Lens Mount Canon EF
Lens Format Coverage APS-C
Angle of View 76.5° to 44.2°
Minimum Focus Distance 11.02" / 28 cm
Maximum Magnification 0.23x
Macro Reproduction Ratio 1:4.3
Optical Design 17 Elements in 12 Groups
Diaphragm Blades 9, Rounded
Focus Type Autofocus
Image Stabilization No
Filter Size 72 mm (Front)
Dimensions (ø x L) 3.07 x 4.76" / 78 x 121 mm
Length at Maximum Extension 4.77" / 121.1 mm
Weight 1.78 lb / 810 g