The launch of the Sigma 17-40mm f/1.8 DC Art lens marks a significant advancement in zoom lens technology for APS-C and Super 35 cameras. This lens stands out as the first of its kind, boasting an impressive combination of a wide focal range and a fast aperture, making it an attractive option for photographers and videographers alike.
The new lens offers a focal length of 17 to 40mm, which translates to a 35mm equivalent of 25.5 to 60mm. This versatility allows users to easily transition between wide-angle shots and standard focal lengths. The maximum aperture of f/1.8 provides excellent low-light performance and depth of field control, making it suitable for various shooting conditions.
Performance and Features
According to expert reviews, including insights from photographer Alex Cooke, the autofocus performance of the Sigma 17-40mm f/1.8 is swift and reliable. It effectively maintains focus on subjects, utilizing advanced face and eye detection technologies. Users can expect sharp image quality with pleasing contrast, minimal flare, and smooth bokeh. The lens has also been designed to control chromatic aberrations, enhancing the overall shooting experience.
In terms of build quality, the lens adheres to the high standards associated with Sigma’s Art line. It features solid construction, a smooth zoom and focus ring, and an electronic focus-by-wire system. While there is no optical stabilization included, users can utilize in-body stabilization if their camera supports it. Notably, the lens includes two programmable buttons and a weather-sealing gasket, which add functional flexibility for diverse shooting setups.
Specifications and Comparisons
The Sigma 17-40mm f/1.8 lens includes a minimum focus distance of 11 inches (28 cm) and a macro reproduction ratio of 0.21x. It consists of 17 elements in 11 groups and features 11 rounded aperture blades. The lens is available for several mounts, including Canon RF, Leica L, Sony E, and Fujifilm X.
The introduction of this lens is likely to prompt comparisons to the older Sigma 18-35mm f/1.8 lens. The new model is lighter, slimmer, and features a quieter autofocus mechanism. It provides a slightly wider and longer range, enhancing its suitability for both video and still photography. On Canon RF cameras, the lens will automatically crop, though cinema cameras allow users to force a full-frame view, albeit with significant vignetting.
Pricing for the Sigma 17-40mm f/1.8 is set at $919, positioning it above the well-regarded 18-35mm f/1.8, which retails for approximately $800 new and is often available used for around $500. Another alternative from Sigma, the 18-50mm f/2.8 Contemporary, is available for $659, but it offers a slower aperture and does not belong to the Art line.
The unique feature of the Sigma 17-40mm f/1.8 is its ability to potentially replace several prime lenses while providing the convenience of a zoom. This flexibility may help justify its price for many photographers and videographers seeking a compact solution for varied shooting situations.
For a comprehensive review and demonstration of the lens in action, viewers can check out the detailed video by Alex Cooke, which highlights its capabilities and performance.
