Sigma 12-24mm F4 DG HSM A | Art

The second of Sigma’s trio of new lens launches is the 12-24mm F4 DG HSM A | Art, an ultra wide-angle zoom with constant f/4 aperture and newly designed Hyper Sonic Motor (HSM)...

Sigma 12-24mm F4 DG HSM A | Art

Sigma 12-24mm F4 DG HSM A | Art

With an RRP of £1649.99, this is Sigma’s third generation 12-24mm zoom, but the first in its acclaimed Art range. A release date is yet to be confirmed.

Promising edge to edge sharpness, Sigma’s 12-24mm F4 DG HSM A | Art also includes FLD (“F” Low Dispersion) glass, a minimum focusing distance of 24cm, and dust- and splash-proof construction.

Key features include:

Lens construction: 16 elements in 11 groups
Maximum aperture: f/4
Minimum aperture: f/22
Angle of view (35mm): 122°-84.1°
Minimum focusing distance: 24-25.8cm/ 9.4-10.2in.
Dimensions (diameter x length) : 102x131.5mm/4.x5.2in.
Number of diaphragm blades: 9 (rounded diaphragm)
Maximum magnification ratio: 1:4.9
Weight: 1150g/40.6oz
Accessories: Case
Mounts: Sigma, Canon and Nikon

Press release:

The ultra-wide-angle zoom pioneer, Sigma has developed and launched many extraordinary products in this category over the decades. Now Sigma introduces an ultra-wide-angle zoom lens that is perfect for the era of ultra-high resolution digital cameras. The Sigma 12-24mm F4 DG HSM | Art offers an optimal package of centre-to-edge image quality, minimised distortion, and minimum focusing distance. To achieve these qualities without compromise, Sigma has leveraged its lens design expertise and all of its leading-edge technologies. Advanced materials such as low-dispersion glass play a crucial role, while Sigma’s advanced lens processing methods have made possible an aspherical lens of extremely large diameter.

Key features

1. From the ultra-wide-angle zoom pioneer, introducing the 3rd-generation 12-24mm zoom
The ultra-wide-angle zoom pioneer, Sigma launched its first ultra-wide-angle zoom in 1979: the Sigma Zoom Gamma 21-35mm f/3.5-4. Since then, we have continued to develop ultra-wide-angle zoom lenses, always including our most advanced technologies. In 2003, we introduced the Sigma 12-24mm f/4.5-5.6 EX DG, the world’s first ultra-wide-angle zoom for DSLRs with full-frame sensors. In 2011, we offered the updated and upgraded version of that lens, the Sigma 12-24mm f/4.5-5.6 II DG HSM. This lens offered an angle of view even wider than that of human vision, allowing users to enjoy the ultra-wide-angle range with incredible perspective. Now, the third generation Sigma 12-24mm f/4 DG HSM | Art continues this tradition with image quality and ease of use both taken to another level.

2. Outstanding image quality—from centre to edges
When it comes to ultra-wide-angle lenses, photographers require outstanding image quality from the centre of the image to the edges without any distortion. Such performance is particularly valuable in architectural photography. The new Sigma 12-24mm F4 DG HSM | Art leverages Sigma’s accumulated expertise in the processing and manufacture of aspherical lenses and incorporates multiple aspherical lenses produced with precision glass molding. The lens also features lens elements made with FLD (“F” Low Dispersion) glass, which is equivalent to fluorite in performance, and an optimised power distribution. Together, these features help minimise distortion, transverse chromatic aberration, and coma flare. As a result, image quality is outstanding across the image, all the way to the edges.

3. Featuring all of Sigma’s latest technologies
● Featuring an ⌀80mm aspherical lens—the largest in this lens class: This lens is highly effective in minimising distortion, spherical aberration, and coma flare.
● f/4 brightness throughout the zoom range: With f/4 throughout the zoom range, this lens is 1 stop brighter than conventional lenses. Photographers can now use a higher shutter speed that will crisply capture leaves fluttering in the breeze and other quick-moving subjects. A constant aperture during zooming also makes this lens exceptionally easy to use.
● Minimum focusing distance of 24cm: Leveraging the incredibly broad perspective of an ultra-wide-angle lens, photographers can compose close-up shots with impressively expansive backgrounds.
● Newly designed HSM for nimble AF control: The newly designed Hyper Sonic Motor (HSM) is large, offers 1.3 times the torque of its predecessor. Even at low speeds, it offers exceptionally stable performance.
● Mount with dust- and splash-proof construction: The lens mount incorporates rubber sealing to protect the mount from dust and water drops. The front and rear lenses feature a water- and oil-repellent coating that is particularly useful when shooting in a drizzle, near ocean spray, and in a wide variety of other conditions.