Sigma 17-40mm F1.8 DC Art Lens – Canon RF Mount

• APS-C | f/1.8 to f/16
• 25.5 to 60mm (Full-Frame Equivalent)
• Superfast Wide-to-Normal Zoom
• HLA Autofocus
• 11" Minimum Focus Distance
• Control Ring
• SLD and Aspherical Elements
• Water- and Oil-Repellent Coating
• Dust & Splash Resistant Construction
• 67mm Filter Diameter

The Sigma 17-40mm F1.8 DC Art revolutionises crop sensor photography with unprecedented F1.8 performance across the entire zoom range. Building on Sigma’s pioneering 18-35mm F1.8 legacy, this next-generation lens delivers superior optical quality with enhanced versatility and reduced weight.

Designed exclusively for APS-C mirrorless cameras, this lens combines the convenience of a zoom with the exceptional image quality and large aperture performance typically found only in prime lenses. From wide-angle environmental shots to portrait-length compression, capture every moment with professional-grade results.

The advanced optical design and video-focused features make this lens equally suited for photographers and content creators seeking uncompromising quality in a portable package.

Sigma 17-40mm F1.8 DC Art Key Features

• Constant F1.8 maximum aperture throughout the entire zoom range
• Prime lens optical quality with exceptional sharpness and rendering
• Lightweight design – over 30% lighter than predecessor
• Professional video capabilities – minimal focus breathing and silent autofocus
• Weather-resistant construction with dust and splash protection
• Dual AFL buttons for customizable control in any orientation
• Inner zoom mechanism maintains constant length for stability
• Advanced coatings minimize flare and ghosting in all conditions

Features in Detail

Exceptional Optical Performance

Advanced 17-element optical design featuring 4 aspherical and 4 SLD elements delivers outstanding image quality across the entire zoom range. Superior correction of chromatic aberrations and distortion ensures sharp, high-contrast results even at the maximum F1.8 aperture.

Constant F1.8 Aperture

Maintain consistent exposure settings and depth of field control throughout the zoom range. The large F1.8 aperture excels in low-light conditions and creates beautiful background separation for portraits and subject isolation.

Enhanced Portability

Significantly lighter and more compact than its predecessor, featuring a 67mm filter thread. The inner zoom design maintains constant length during operation, improving balance and handling while providing better protection against dust and moisture.

Video Production Ready

HLA (High-response Linear Actuator) provides fast, silent autofocus perfect for video work. Minimal focus breathing ensures smooth focus transitions, while the aperture ring offers precise control with optional click-stop disengagement for silent operation.

Professional Build Quality

Dust and splash-resistant construction with water and oil-repellent front coating enables reliable performance in challenging conditions. Dual AFL buttons positioned for easy access in both landscape and portrait orientations provide customizable functionality.

Versatile Zoom Range

The 17-40mm focal length (equivalent to 25.5-60mm on APS-C) covers essential shooting scenarios from environmental portraits to detailed close-ups, eliminating the need for multiple lenses in many situations.

Designed for use with:

All Cine Cameras

Mirrorless Cameras

What’s in the Box

• Sigma 17-40mm F1.8 DC Art Lens
• Lens Hood LH728-02
• Front Lens Cap LCF-67 IV
• Rear Lens Cap LCR III (mount-specific)
• Protective Lens Pouch
• Instruction Manual
• Warranty Information