Sigma 17-40mm f/1.8 DC ART Lens for Canon RF (APS-C)

Redefining What a Zoom Lens Can Be

The Sigma 17-40mm f/1.8 DC Art lens breaks new ground for APS-C mirrorless shooters. As the worlds first F1.8 zoom spanning this focal range, it combines the versatility of a zoom with the light-gathering power and image quality of a prime. Whether you’re capturing moody portraits, cinematic video, or dynamic wide-angle scenes, this lens keeps pace with your visionwithout compromise.

More Light, More Possibility

With a constant F1.8 aperture across the zoom range, the 17-40mm Art lets you work confidently in low light and harness creamy bokeh with every frame. From tight indoor shots to open landscapes, your images retain clarity, contrast, and character. Its a lens that empowers you to shoot with depth and intention, no matter the environment.

Built for Motion, Perfect for Stillness

Whether youre framing stills or shooting handheld video on a gimbal, the internal zoom keeps the lens stable and balanced. Autofocus is swift and nearly silent, thanks to the High-response Linear Actuator (HLA). Plus, minimal focus breathing means youll get consistent framing from shot to shota must for solo creators and videographers.

Optics That Inspire Confidence

This lens delivers stunning sharpness even wide open, with rich detail across the frame. Advanced coatings reduce flare and ghosting, ensuring punchy results even in challenging light. Aspherical elements correct chromatic aberrations and coma flare, maintaining image integrity from edge to edge.

Compact, Lightweight, Adventure-Ready

At over 30% lighter than its predecessor, and with a streamlined 67mm filter thread, the 17-40mm f/1.8 is built for mobility. Its dust- and splash-resistant construction and water- and oil-repellent front element mean its equally at home in the studio or the wild. From street photography to outdoor travel, its a reliable companion wherever creativity calls.

Ready for Rigging

Two customizable AFL buttons make for intuitive control in both portrait and landscape orientation. The dedicated aperture ring offers tactile feedback for manual shooters, with clickless and locking functionality for seamless video work. (Canon RF mount version features a control ring instead.)