Sigma 24-70mm F2.8 DG DN Art Sony E Mount 578965

Product Information

Like all other lenses in its class, this lens extends with focal length change, becoming 1.24" (31.5mm) longer at 70mm.

Sigma 24-70mm f/2.8 DG OS HSM Art Lens Review Sigma 24-70mm f/2.8 DG OS HSM Art Lens Review

The Sigma Art series 24-70mm f/2.8 lens’s overall score of 31 on the Nikon D810 puts it 5 points behind the maker’s 24-35mm f/2, which is a noticeable margin. We expected the new lens to be closer. In that comparison, you will find other f/2.8 lenses that perform noticeably better at f/2.8 than this one. Autofocus was quite a pleasant experience with the Leica 24-70mm, and as a bit of a teaser to our comparison to the Sigma lens, I found that every aspect of Leica’s lens responded faster than Sigma’s on the SL2. Leica told us that it expected performance to be better with a Leica to Leica interaction, and while I admit I wasn’t quite sure I believed that then, I certainly believe it now. Since Sigma reverse engineers (vs. licenses) manufacturer electronics and algorithms, there is always the potential for a DSLR body to not be supported by a (likely older) third party lens. In addition to the obvious inclusion in the name, it is denoted by an "A" stamped in a classy chrome circle on the lens barrel.The 24mm end is great for landscape photography, for shooting indoors and in other tight places and for a wide range of other uses. If you don't need the f/2.8 aperture, there are a number of f/4 lenses that cover or exceed the 24-70mm focal length range and all are worth considering.

24-70mm F2.8 DG OS HSM | Art | Lenses | SIGMA Corporation 24-70mm F2.8 DG OS HSM | Art | Lenses | SIGMA Corporation

With a few exceptions, f/2.8 is the widest aperture available in a zoom lens and majority of those exceptions cover only the smaller APS-C image circle. Aperture ring: No, just like the other lenses in this comparison, except for the Nikon which offers a multi-function control ring which can be assigned to operate the aperture or exposure compensation. [0] While the f/2.8 aperture is quite wide and alone makes a camera handholdable in low light, optical stabilization dramatically decreases the amount of light necessary for capturing sharp handheld images. I much-prefer holding a zoom lens with my left hand positioned under the zoom ring at the lens' balance point, which in this case is around the focus ring or just slightly rearward.Framing narrower on APS-C cameras (full frame 36-105mm equivalent angle of view), the 24-70mm lens' uses shift away from wide angle landscapes/cityscapes/nightscapes and environmental portraits toward portraiture including more tightly-framed portraits. The non-VR Nikon option is more-attractively priced than the VR counterpart, but it is still considerably more expensive than the Sigma.

24-70mm F2.8 DG DN - SIGMA Corporation Support | 24-70mm F2.8 DG DN - SIGMA Corporation

Consequently, I’ll have to reserve judgement on the Sigma’s AF performance for action photography, though I don’t have any reason to believe that there’s anything wrong with it. For the ways that I used the lens, it performed as it should. Distortion, Vignetting, and BokehThe Sigma 24-70mm f/2.8 EX DG HSM Lens is available in Canon (reviewed), Nikon, Pentax, Sony/Minolta and Sigma mounts. Sigma is more active than anyone else in this space, with not only an Art series 24-70mm f/2.8, but also a faster and shorter-range 24-35mm f/2 , so it’s interesting to compare the performance of these with others lenses sharing a Nikon mount, including the well-liked Nikon model and its equally-respected predecessor. Weight: 827g (29.2 oz.) plus 55g for the lens hood. The other lenses in this comparison are of similar weight except for the Tamron which is much lighter at 540g + 25g lens hood. The Panasonic is the heaviest at 935g (+ lens hood). [0]

Sigma 24-70Mm F/2.8 Dg Dn Full Frame Lens for Sony E Mount Sigma 24-70Mm F/2.8 Dg Dn Full Frame Lens for Sony E Mount

Stopping down to f/4 shows a very noticeable improvement and performance at f/5.6 is, again, quite good. As an experienced lens manufacturer that has been creating a diverse range of interchangeable lenses, we have started the innovative chargeable service “Mount Conversion Service”. With this service, the mount of your current SIGMA lenses can be changed to another mount of your choice. It gives a new life to your favourite lenses when you wish to use it on a different camera body. The two Sigma lenses perform similarly, with the Art having slightly less barrel distortion between 24mm and 28mm and slightly more pincushion from 35mm to 70mm. However, it’s only likely to be noticeable above ±0.5% with linear picture elements running parallel and close to the edge of the frame. The graph below shows the degree of corner shading visible in images from the three lenses at their longest focal length and widest aperture (when it will be most noticeable).At f/4, these two lenses are both extremely sharp and there is little differentiation in this regard aside from the Canon's still-better corner performance. With a 14.6" (370mm) minimum focus distance (MFD), the 24-70mm Art lens turns in an overall-good 0.21x maximum magnification (MM) at the 70mm mark. Stopping down the aperture significantly resolves the shading with f/4 resulting in 1 to 2 stops of shading and the f/5.6 range is from 1.5 stops at the wide end to .6 stops at the long end. Focus accuracy and repeatability is critical to consistently produce sharp shots. Repeatability (the accuracy of focus on the same subject after repeated focus-acquisition) of this lens at 70mm focal length is very good (measured 99.1% in Reikan FoCal) with no outliers over a series of 40 shots. There is no focus variation whether the lens focuses from a closer distance or from infinity and I didn’t detect any hunting. At 70mm focal length the lens focuses in around 0.7 sec from infinity to 0.76m (1:10 magnification), which is as fast as the Tamron 28-75mm f2.8 Di III but slower than the Nikon Z 24-70mm f2.8 S (on a Z7) at 0.5 sec.