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

With an F1.8 large aperture and exceptional image quality comparable to a prime lens across the entire zoom range
This zoom lens for APS-C mirrorless cameras pushes the boundaries of still and video expression
The Sigma 17-40mm F1.8 DC | Art builds upon the groundbreaking innovations of the Sigma 18-35mm F1.8 DC HSM | Art, which earned high acclaim as the world’s fi rst F1.8 zoom lens in the photography and video industry. Thirteen years after its debut, this next-generation lens achieves not only superior optical performance but also a wider focal length of 17-40mm while reducing its weight by over 30%. This dramatically enhances the versatility of a large aperture standard zoom lens.

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 fi rst-ever F1.8 zoom lens, has once again revolutionized the history of large aperture zoom lenses with groundbreaking advancements.

LIST OF FEATURES
HLA (High-response Linear Actuator)
Inner zoom
Water- and oil-repellent coating
Aperture ring (1)
Aperture ring click switch (2)
Aperture ring lock switch (2)
AFL button (2 locations) (3)
Focus Mode switch (4)
Dust- and splash- resistant structure
Mount Conversion Service available
Support for switching between linear and non-linear focus ring settings (for L-Mount only) (5)
Compatible with Sigma USB Dock UD-11 (sold separately / for L-Mount only)
Every single lens undergoes Sigma’s proprietary MTF measuring system
1. The Canon RF Mount version has a control ring instead of an aperture ring.

2. For the Canon RF mount, this is not equipped.

3. Functions can be assigned on supported cameras only. Available functions may vary depending on the camera used. The FUJIFILM X Mount version has an AF function button that can be used to select AF lock/AF operation via lens switch.

4. The FUJIFILM X Mount is equipped with an AF function setting switch for selecting the function to be used when the AF function button is pressed.

5. Only cameras that are compatible with the system are allowed to use the system.