Sigma 17-40mm f/1.8 DC Art Lens

Sigma sets a new standard with the world’s first f/1.8 zoom lens for APS-C mirrorless cameras. The 17–40mm f/1.8 DC Art offers prime-like optical performance in a versatile wide-to-normal focal range, letting creators carry a lighter kit without sacrificing image quality. Designed for both photography and video, it blends Art-series optical excellence with modern, video-friendly functionality.

Design and Performance

• Advanced optics: 17 elements in 11 groups, including four aspherical and four Special Low Dispersion (SLD) elements, deliver high clarity while minimizing flare, ghosting, and aberrations.

• Art-series quality: Optical performance on par with or exceeding the renowned Sigma 18-35mm f/1.8 DC HSM Art.

• Bright f/1.8 aperture: Constant maximum aperture ensures low-light performance, shallow depth of field, and smooth bokeh from an 11-blade rounded diaphragm.

• Close focusing: Minimum focusing distance of 11" throughout the zoom range, with up to 1:4.8 magnification at the long end for added versatility.

Optimized for Video Production

• Run-and-gun ready: Wide-to-normal focal range with f/1.8 brightness suits single-shooter and gimbal setups.

• Internal zoom design: Lens length remains constant, simplifying balance on gimbals and rigs.

• Minimal focus breathing: Maintains consistent framing when racking focus.

• Fast, quiet AF: High-speed linear actuator autofocus delivers smooth and accurate focusing, with improved manual control via click-and-lock mechanisms.

Professional Features

• Dual AFL buttons for customizable control.

• Focus mode switch for quick AF/MF changes.

• Weather sealing: Dust- and splash-resistant construction.

• Protective coatings: Water- and oil-repellent front element.

• Durable mount: Precision-made brass bayonet for long-term reliability.