They’re claiming that the Sigma 85mm f1.4 DG DN Art is better than the one they made for DSLRs.

If you’re a Sony E mount user, you’ve got a plethora of 85mm lens options. And today, you’re getting another with the Sigma 85mm f1.4 DG DN Art. According to Sigma, they’ve made it around 1lb lighter and 1 inch smaller than the previous version. As Sigma is a licensed Sony partner, you can also expect the autofocus performance to be as good as it possibly can be. That means this lens will fully realize the Eye-AF and Face detection algorithms that Sony cameras use. Couple this with weather sealing, Sigma’s aluminum/Thermally Stable Composite build combo, and the edge to edge sharpness they’re touting, and it seems to be a winner.
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Read full post here:
https://www.thephoblographer.com/2020/08/06/the-sigma-85mm-f1-4-dg-dn-art-solves-an-issue-with-aperture-rings/