It's also a very quiet performer, which makes this lens equally well-suited to both video recording and more candid stills shooting. We didn't experience very much "hunting" at all, either in good or bad light, with the lens accurately focusing almost all of the time. When it comes to auto-focusing, the Sigma 24-70mm f2.8 DG DN Art is a very quick performer, taking about 0.10 seconds to lock onto the subject when mounted on the Sony Alpha A7 III that we tested it with. There is a dedicated Auto Focus Lock (AFL) button that can also be re-configured to assign various functions to the lens barrel.
Set the focal length to 24mm and move it to the Lock position to prevent the zoom mechanism from creeping when the camera is pointed down or in storage. The Lock function switch is a useful feature that helps protect the lens. Polariser users should be pleased that the 82mm filter thread doesn't rotate on focus. There are no hard stops at the ends of the range, making it harder to set focus at infinity. The Sigma 24-70mm f2.8 DG DN Art lens has a generously sized focus ring, which is ridged for easier grip.
#Sigma 24 70 2.8 manual
Full-time manual focus override is also available at any time simply by rotating the focus ring. This notably doesn't include built-in Vibration Reduction, though, with the lens relying on the camera body to supply this feature.įocusing is usefully internal and manual focusing is possible when set via the Focus switch on the lens barrel. In terms of features, the Sigma 24-70mm f2.8 DG DN Art offers almost everything that you need from a standard zoom lens. The optical elements are made of high-grade glass. It also incorporates a brass bayonet mount that's supposed to be more durable. The lens has a plastic shell with a mixture of metallic parts and a compound material, TSC (Thermally Stable Composite), used inside. Weighing in at 830 grams and measuring nearly 12.5cm in length, the Sigma 24-70mm f2.8 DG DN Art is certainly a big and heavy lens given its focal length, although it's actually slightly lighter and shorter than its main rival, the Sony FE 24-70mm F2.8 GM (886g and 13.6cms).Īs seen in the photos below, it complements a full-frame camera like the Sony Alpha A7 III that we tested it wit, although it feels somewhat out of place on a smaller APS-C body.īuild quality is excellent given the comparatively affordable price tag.
The Sigma 24-70mm f2.8 DG DN Art lens is priced at £1,049.99 / $1,099.99 in the UK and the USA, respectively. It also offers a dust- and splash- proof construction, a stepping AF motor for fast and quiet autofocusing, a zoom lock switch, a configurable AFL button, and a minimum focusing distance of 18cm (at 24mm) and maximum reproduction ratio of 1:4.5 (at 70mm). The Sigma 24-70mm f2.8 DG DN Art features a rounded 11 blade diaphragm which creates an attractive blur to the out of focus areas of the image. It will also work with APS-C sensor cameras with an effective increase in focal length to 36-105mm due to the crop factor. The Sigma 24-70mm f2.8 DG DN Art for for Sony E-Mount and L-Mount is a new fast standard zoom lens for full-frame Sony, Leica, Panasonic and Sigma cameras.