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.
I'd like a full spread of proper 1:1 or better macro lenses: 200-ish mm, 100-ish mm, 50-ish mm.I hope to soon see the 105mm macro for RF. I like everything about the 70mm Art, except the fiddly manual focusing.
Thank you for that insight. For me, Canon needs to push the R's a little harder and provide a nice macro for me to buy in.I think Canon spent a lot of effort to make it a patent minefield for anyone to produce RF lenses that can integrate with a R series camera. Its possible to make one mount and operate using EF compatibility but reports say that no one has achieved the RF protocols. That is why Canon is pushing the R series cameras, no competition for true RF lenses.