The video above is actually the world’s first video showing the autofocus performance of the new Sigma MC-11 electronic E-mount adapter. I cannot recognize the lens used but you can see how fast it focuses.
Sigma’s new MC-11 adapter cost $249 and will ship in April according to BHphoto (preorder here).
And below you can see the official Sigma MC-11 presentation video:
https://www.youtube.com/watch?v=dys6BjMUPm0
Thanks Gonzalo for sharing those videos!
P.S.: New Sigma 30mm E-mount preorder links at BHphoto, Adorama, WexUK and Calumet Germany.