Sigma AF 17-40mm F1.8 DC (A) Lens - Canon RF Mount

Next-Generation Optics for Canon RF APS-C

Engineered for Canon’s RF-mount APS-C mirrorless cameras, the Sigma 17-40mm F1.8 DC | Art lens brings professional zoom versatility to the growing R-series ecosystem. With an effective focal range of approximately 27.2–64mm, this lens enables rich, nuanced imagery across a wide span of subjects—from sweeping interiors to emotive portraits.

Bright Aperture, Beautiful Character

With its constant F1.8 maximum aperture, this lens opens new creative doors for Canon users, especially in indoor or nighttime environments. The advanced optical formula ensures exceptional sharpness, controlled aberrations, and pleasing out-of-focus rendering, giving your images a sophisticated, three-dimensional feel.

Smooth Video Integration with RF Workflow

While this version replaces the physical aperture ring with Canon’s familiar multifunction control ring, users still enjoy tactile, customizable operation suited to both still and video applications. The lens is fully optimized for modern hybrid shooting, featuring minimal focus breathing and rapid, accurate autofocus driven by Sigma’s HLA motor.

Compact Powerhouse with Canon Quality

Despite its high-performance optics, the 17-40mm F1.8 DC | Art remains impressively compact and weighs under 540g, making it a valuable addition to any RF-mount travel kit. Paired with weather resistance and Sigma’s Art-series durability, it’s a compelling option for Canon shooters seeking maximum flexibility and uncompromised quality.