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Black Sigma Art zoom lens for Canon RF with 67mm filter kit accessories

SIGMA

Sigma 17-40mm f/1.8 DC Art Lens for Canon RF with 67mm Filter Kit

SKU CH-PN6S-XXCB9

Wide 17-40mm APS-C zoom with constant f/1.8 aperture and 67mm filter kit

  • Constant f/1.8 aperture for bright low-light shooting
  • 17-40mm zoom covers wide to standard angles
  • 17 elements in 11 groups with 4 SLD and 4 aspherical lenses
  • Inner zoom and minimal focus breathing aid video work
  • Bundle adds 67mm filter kit, cap keeper, cleaning kit

Sigma 17-40mm f/1.8 DC Art Lens

This wide-angle zoom lens is designed for Canon RF mount APS-C mirrorless cameras and delivers a constant f/1.8 maximum aperture across its 17-40mm range. The optical design uses 17 elements in 11 groups, including four SLD and four aspherical elements, to achieve prime-like image quality. It is built for photographers and videographers who need fast low-light performance and versatile framing in a single lens. The bundle adds a 67mm filter kit, PC software kit, cap keeper and cleaning kit.

Thermals noise and power draw

The lens uses an inner zoom mechanism that maintains a constant physical length during operation, which helps balance the unit on a gimbal or tripod. An HLA (High-response Linear Actuator) drives fast and quiet autofocus with minimal focus breathing, reducing mechanical noise during video recording. Power is drawn directly from the camera body through the RF mount, so no external power source or battery is required for normal use.

Build quality and daily use

The barrel is constructed to be over 30% lighter than the earlier 18-35mm f/1.8 design, improving comfort during extended handheld shooting. A 67mm filter thread accepts standard circular filters without vignetting at the wide end. The RF mount provides full electronic communication for aperture control, EXIF data and in-camera corrections. The included cap keeper secures the front cap against loss, and the cleaning kit helps maintain optical clarity in the field.

Highlights

  • Constant f/1.8 aperture for bright low-light shooting
  • 17-40mm zoom covers wide to standard angles
  • 17 elements in 11 groups with 4 SLD and 4 aspherical lenses
  • Inner zoom and minimal focus breathing aid video work
  • Bundle adds 67mm filter kit, cap keeper, cleaning kit

Specifications

No published specifications for this item yet.

Questions about this item

How is the 67mm filter kit installed on the Sigma 17-40mm f/1.8 DC Art Lens, and what step do people often miss?

Screw each filter onto the front 67mm thread until snug; the step many miss is removing the protective cap first and checking for cross-threading before tightening.

What maintenance will the HLA autofocus motor and inner zoom mechanism need over time?

The HLA motor and inner zoom are sealed units requiring no lubrication; routine care is limited to cleaning the front and rear glass elements with the supplied cleaning kit.

What limit appears first during sustained video recording with the constant f/1.8 aperture?

Focus breathing is minimised by design, so the first practical limit is usually the camera body's own recording time limit or sensor heat management.

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