Sigma 17-40mm f/1.8 DC Art Lens (FUJIFILM X)

The Sigma 17-40mm f/1.8 DC Art Lens (FUJIFILM X) is a groundbreaking wide-to-normal zoom lens designed for APS-C mirrorless cameras, combining exceptional image quality with a fast constant f/1.8 aperture throughout the entire zoom range. Delivering prime-like optical performance in a compact and lightweight design, the lens is ideal for photography, filmmaking, and hybrid content creation workflows.

Covering versatile wide-angle to standard focal lengths, the 17-40mm range is well suited for interviews, documentary work, street photography, travel, and everyday shooting. Its video-optimized design supports smooth operation for modern content creators, while the bright f/1.8 aperture enhances low-light performance and shallow depth of field control. Compact yet powerful, the Sigma 17-40mm f/1.8 DC Art Lens offers professional-level performance while keeping camera setups lightweight and versatile

Design and Performance

The lens features a total of 17 elements in 11 groups, with four aspherical and four Special Low Dispersion elements to minimize flare and ghosting and suppress various aberrations. This results in an optical performance that meets or exceeds that of other Sigma Art lenses, including the 18-35mm f/1.8 DC HSM Art lens. Along with its 11-blade, rounded diaphragm, the design promotes sharpness and a large, smooth bokeh when used wide open.

In addition to the f/1.8 maximum aperture, the lens also maintains an 11" minimum focusing distance across the entire zoom range. It achieves a maximum magnification ratio of 1:4.8 at its longest focal length, increasing depth of field and versatility in tight spaces.

Video Production

Designed with video creation in mind, the lens' bright f/1.8 aperture and wide-to-normal zoom range make it a versatile tool ideal for single-shooter, run-and-gun setups. An internal zoom design maintains the overall length during use, making it easy to balance on gimbals. The design also suppresses focus breathing for smooth movement across the focal range. Sigma's high-speed, high-response linear actuator autofocus remains both quiet and accurate, while manual focusing is improved with click-and-lock mechanisms.

Features

• Two AFL buttons
• Focus mode switch
• Water- and oil-repellent coating on front element
• Dust- and splash-resistant design
• Durable brass bayonet mount
• Compatible with the USB Dock UD-11