there was a very good discussion on the subject back in May 2020:Are there any updates as to what Sigma is developing?
Apparently, the new Sigma 85/1.4 Art DN (Sony E mount) is excellent. smaller, sharper then the old 85/1.4 art, creamy bokeh. with lenses as wide as 20mm on RF mount, there is still likely some room for Improvements... lets wait and seeThank you, SecureGSM. I want to buy a fast 20mm with good coma control. I am sure Sigma will produce some unique, fast lenses (especially since Sigma is taking so long) but realistically, I doubt that an improved 20mm is likely.
3serious,I'd love to see a sigma 135 1.8 in RF mount. I am tempted to pick up and adapt their EF mount 135, but I want native glass only moving forward.