Sigma Art 17-40mm F1.8 DC - Canon RF Mount
A1740DCRFS
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Description
With an F/1.8 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.
Technical Data
| Technical Specifications | |
|---|---|
| Sensor Format | APS-C [DC] |
| Lens Construction | 17 elements in 11 groups (4 SLD, 4 aspherical elements) |
| Angle of View | 79.7–39.1° |
| Number of Diaphragm Blades | 11 (rounded diaphragm) |
| Minimum Aperture | F16 |
| Minimum Focusing Distance | 28cm / 11.1in. |
| Maximum Magnification Ratio | 1:4.8 at f=40mm |
| Filter Size | φ67mm |
| Dimensions (Diameter × Length) | φ72.9mm × 117.9mm / φ2.9in. × 4.6in. |
| Weight | 525g / 18.5oz. |