Exceptional image quality in a fast standard zoom
Building on the legacy of the acclaimed SIGMA 18-35mm F1.8 DC HSM | Art—the world''s first F1.8 zoom—the new SIGMA 17-40mm F1.8 DC | Art takes large-aperture zoom design to the next level. Offering an even broader focal range while being over 30% lighter than its predecessor, it delivers both prime-like optical performance and enhanced portability. With its constant F1.8 aperture and cutting-edge optical design, it is a powerful all-rounder for both stills and video.
Driven by SIGMA''s High-response Linear Actuator (HLA) motor, autofocus is exceptionally fast, smooth and quiet. The inner zoom mechanism keeps the lens length consistent across the zoom range, ensuring stable handling for handheld shooting, tripod use or gimbal operation. With minimal focus breathing and advanced video-oriented functions, the 17-40mm F1.8 is just as well suited to filmmaking as it is to photography.
Prime-like performance with the flexibility of a zoom
With its constant F1.8 maximum aperture, the SIGMA 17-40mm F1.8 DC | Art delivers creative flexibility typically reserved for prime lenses. Its large aperture allows for excellent subject separation with smooth bokeh, as well as strong low-light capability for indoor, night-time and event photography.
The advanced optical design incorporates precision aspherical elements and the latest processing technology to achieve outstanding resolution across the frame. By carefully correcting axial chromatic aberration and sagittal coma flare, the lens ensures sharp rendering of fine textures and bright points of light—even wide open at F1.8.
Expanded zoom range for greater versatility
Covering the equivalent of 25.5-60mm* in 35mm format, the 17-40mm range extends beyond its predecessor to provide greater framing freedom. From wide-angle tabletop compositions to intimate portraits at the telephoto end, photographers can enjoy the expressive power of F1.8 without the need to switch lenses.
Lightweight, stable and portable
Despite its wide aperture and advanced optical construction, the lens is more than 30% lighter than the 18-35mm F1.8 DC HSM | Art, with a compact filter diameter of 67mm. Its inner zoom design keeps the barrel length constant, offering improved balance, stability and dust resistance when shooting. This makes it an excellent choice for travel, everyday use and professional video production.
Durable build with enhanced protection
The 17-40mm F1.8 DC | Art is equipped with a dust- and splash-resistant structure, while the front element features a water- and oil-repellent coating for reliable performance in challenging outdoor conditions.
Two AFL buttons, positioned for easy access in both landscape and portrait orientation, can be custom-assigned to a variety of functions from the camera body for greater operational flexibility.
Video-friendly functionality
Fast, precise autofocus
The HLA motor delivers smooth, high-precision AF that is ideal for both stills and video, whether working handheld, on a gimbal or during vlogging.
Minimal focus breathing
Focus breathing suppression ensures natural-looking focus transitions, maintaining consistent framing during video recording.
Aperture ring with pro-level control
A dedicated aperture ring offers intuitive exposure control. Videographers can disable click stops for smooth, silent aperture changes, while a lock switch prevents accidental adjustments.
17-40mm Lens
Lens Hood
Front Cap
Rear Cap
