Back in mid-2017, I was tasked with reviewing Sigma’s first 24-70mm lens, the 24-70mm f/2.8 DG OS HSM IF Art lens, and I was extremely disappointed. You can read my whole review here, but in summary, I found it to be sadly inconsistent with its sharpness. Most notably, I found that edge sharpness was really quite bad.
There is one photo I took that pretty well shows my problems with the lens, and it’s this one:
Photo by Jaron Schneider, taken with the Canon 1DX Mark II w/ Sigma 24-70mm F2.8 DG OS HSM Art
Taken from a helicopter over Los Angeles, I really like the composition of the image and was looking forward to printing it. When I got it back to my edit station, however, I was very much let down with how soft anything other than the middle of the frame was. I was so disappointed that I put this photo in a digital folder and hadn’t looked at it again until I started writing this story.