Interview with Kazuto Yamaki, CEO of Sigma (L-mount, E-mount and more):
https://photorumors.com/2019/03/21/...yamaki-ceo-of-sigma-l-mount-e-mount-and-more/
https://photorumors.com/2019/03/21/...yamaki-ceo-of-sigma-l-mount-e-mount-and-more/