The Sigma ART 17-40mm f/1.8 DC builds upon the groundbreaking innovations of the Sigma ART 18-35mm f/1.8 DC HSM, which earned high acclaim as the world’s first f/1.8 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 first-ever f/1.8 zoom lens, has once again revolutionized the history of large aperture zoom lenses with groundbreaking advancements.

Constant maximum aperture of f/1.8

The Sigma ART 17-40mm f/1.8 DC has the convenience of a zoom lens witha constant aperture of f/1.8 throughout the zoom range. Taking advantage of a large aperture comparable to a prime lens, the lens is suitable for low-light environments such as indoor and night scenes, as well as for expression using large bokeh.

Excellent optical performance

The optical design, realized through the latest design and processing technologies, including the use of high-precision aspherical lenses, achieves excellent optical performance.

By emphasizing the correction of axial chromatic aberration and sagittal coma flare, the lens achieves high resolution even at the wide-open f/1.8 aperture, rendering delicate textures and fine details with stunning clarity.

Flexible framing made possible

The zoom range of the Sigma ART 17-40mm f/1.8 DC has been expanded from its predecessor the Sigma ART 18-35mm f/1.8 DC HSM, covering 25.5-60mm in 35mm format. From wide-angle tabletop photography to portraits that fully utilize the telephoto angle of view, users can take full advantage of the expressive power of the large f/1.8 aperture while freely framing their shots without the need to change lenses.

Designed to minimize flare and ghosting

Using advanced simulation technology and Sigma’s Super Multi-Layer Coating, flare and ghosting have been largely eliminated, ensuring that the lens renders rich, high-contrast results in all conditions.

Practical and stable inner zoom

Employing an inner zoom mechanism, the overall length of the lens remains constant when the focal length or focus distance changes. This means the lens is easy to use and highly stable when shooting hand-held, on a tripod or gimbal, and even more resistant to dust and water contamination.

Include accessories: Pouch - Lens Hood LH728-02 - Front Cap LCF-67 IV - Rear Cap LCR III