Opticallimits

https://www.cosina.co.jp/news/%e3%82%b3%...%e8%a3%bd/

in E-, R- and Z-mount - all without AF but with electronic coupling - even in R-mount.

Well Canon did allow a couple other Voigtländers before, likely because they don't threaten the monopoly due to being MF, and 99% of the userbase (okay, maybe 97.5%) would not consider an MF lens anyway.