Sigma 17-40mm f/1.8 DC Art Lens for Canon RF

The Sigma 17-40mm f/1.8 DC DN Art lens for Canon RF mount (APS-C) is the world’s first zoom lens for APS-C cameras with a constant f/1.8 aperture — delivering stunning low-light capability, cinematic depth of field, and professional-grade sharpness across the entire zoom range. Built for Canon EOS R-series APS-C bodies, this Art-series lens is a game-changer for content creators, hybrid shooters, and professionals looking for prime-like performance with zoom versatility.

• Constant f/1.8 Aperture (World’s First in APS-C Zoom)

  • Exceptional light-gathering for low-light environments and dramatic bokeh — throughout the entire 17–40mm range.

• Versatile 17–40mm Focal Length (Approx. 27–64mm on APS-C)

  • Wide to standard coverage perfect for landscape, street, portrait, event, and documentary shooting.

• Exceptional Art-Series Optics

  • Incorporates FLD, SLD, and precision aspherical elements for edge-to-edge sharpness and minimal chromatic aberration.

• Quiet, Fast Stepping Motor (STM) Autofocus

  • Smooth and silent focusing for high-speed stills and pro-quality video capture — ideal for Canon’s Dual Pixel CMOS AF system.

• Optimized for Canon EOS R APS-C Cameras

  • Fully compatible with EOS R7, R10, and future RF-mount APS-C bodies with seamless electronic communication.

• Compact, Lightweight & Durable

  • Premium design that balances beautifully with mirrorless bodies while offering rugged reliability.