Here are the images of the upcoming Sigma 60-600mm F4.5-6.3 DG DN OS | Sports Lens, leaked online. It is scheduled to be officially announced very soon.
From the images, you can see that Sigma 60-600mm F4.5-6.3 DG DN lens is equipped with buttons, lock switches, custom switches, and a 6m focus limiter on the lens barrel. Comparing the optical performance of the 60-600mm F4.5-6.3 DG OS HSM for single-lens reflex cameras with the MTF chart, it seems that the peripheral area is particularly improved (the image above is the geometric optical MTF).
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