Dan Watson has tested the a $6,000 dollar combo: Sony Alpha a9 w/ Sigma 135mm f/1.8 DG HSM Art lens using MC-11 adapter. From the video above, we see that the autofocus on Sony Alpha a9 is really good, and a9 eye’s tracking is also works great.
- Sony Alpha a9 – at Amazon/B&H Photo/Adorama
- Sigma 135mm f/1.8 DG HSM Art Lens for Canon EF mount – at Amazon/B&H Photo Video/Adorama
- Sigma MC-11 Adapter – at Amazon/B&H Photo/Adorama