Sigma 17-40mm f1.8 DC Art Lens Fujifilm X

Sigma 17-40mm f1.8 DC Art Lens Fujifilm X for APS-C mirrorless cameras pushes the boundaries of still and video expression.

In addition to the fast and quiet autofocus driven by the HLA (High-response Linear Actuator), the lens incorporates an inner zoom mechanism and minimal focus breathing, ensuring outstanding performance for both still photography and video production. Sigma, the pioneer that stunned the world with the first-ever F1.8 zoom lens, has once again revolutionized the history of large-aperture zoom lenses with groundbreaking advancements.

Prime-like image quality

Thanks to 4 SLD elements and 4 aspherical lenses, the optical design delivers razor-sharp results with minimal aberration and stunning clarity even wide open at F1.8.

Expanded zoom range

Covers a 35mm equivalent of 25.5-60mm (or 27.2-64mm on Canon RF), letting you go from wide-angle landscapes to portrait-ready shots without ever changing lenses.

Two customizable AFL buttons

Dual AFL buttons, placed for easy access in landscape or portrait mode, let you assign camera functions like AF lock or tracking to the lens itself.

High-speed and quiet autofocus with HLA

Sigma’s High-response Linear Actuator (HLA) gives you lightning-fast and near-silent focusing, which is ideal for vlogging, interviews, and run-and-gun filmmaking.

Focus Mode switch

Switch between auto and manual focus with the dedicated Focus Mode switch, conveniently placed for fast decisions in the field.

Mount conversion service support

Sigma’s Mount Conversion Service can adapt your lens to a different mount, keeping your gear future-proof.

Linear/Non-linear Focus Ring customization

For L-Mount users, adjust the focus ring behavior to suit your shooting style: linear for manual video pulls, or non-linear for intuitive stills work.

Compatible with Sigma USB Dock UD-11

Fine-tune firmware and performance settings using the optional USB Dock, designed specifically for L-Mount lenses.