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 first 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 first-ever F1.8 zoom lens,
has once again revolutionized the history of large aperture zoom lenses
with groundbreaking advancements.
KEY FEATURES
Standard zoom lens with a large aperture and
descriptive power comparable to a prime lens
Constant maximum aperture of F1.8
The Sigma 17-40mm F1.8 DC | Art has the convenience of a zoom lens with a
constant aperture of F1.8 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 F1.8
aperture, rendering delicate textures and fine details with stunning clarity.
Flexible framing made possible
The zoom range of the Sigma 17-40mm F1.8 DC | Art has been expanded
from its predecessor the Sigma 18-35mm F1.8 DC HSM | Art
. 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 F1.8 aperture while freely
framing their shots without the need to change lenses.
Highly portable and versatile for any situation
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.
Enhanced mobility with a compact and lightweight design
The Sigma 17-40mm F1.8 DC | Art is over 30% lighter and has a filter
diameter of 67mm, which is one size smaller than its predecessor the Sigma
18-35mm F1.8 DC HSM | Art. Despite being a large aperture zoom lens, it is
surprisingly portable. The expressive power of F1.8 can be used with a
compact APS-C system, making it ideal for travel and everyday photography,
as well as video production, where mobility is key.
Functions that support video production
HLA-driven high-speed AF
The adoption of HLA (High-response Linear Actuator) enables quiet,
high-speed, high-precision autofocus. The smooth, stable autofocus is
perfect not only for still photography, but also for single-operator shooting
with a gimbal or vlogging.
Minimal focus breathing
The focus breathing is suppressed, minimizing changes in the angle of view
caused by focus shift and enabling smooth, natural-looking focus pulls
when recording video.
Aperture ring with various functions
Equipped with an aperture ring
1 for intuitive control of the aperture. When
shooting video, users can turn off the click switch for smooth, quiet aperture
control. It also has an aperture ring lock switch2 to prevent accidental
changes to the aperture during shooting