.A few steps from bustling downtown Chicago and there are expanses of green near the marina. And people walking, running and biking. And a good chance to brush up on my panning technique. The lens had no problem keeping up with 15 fps on my Sony A9M2, locking on in tracking focus and giving me good background blur. .Sigma 28-70mm f2.8 DGDN on a Sony A9M2. ISO 100; f20 at 1/30 second. 70mm.
Sigma 28-70mm Contemporary lens