A7 & MC-11
The Techart EF adapter somehow unlocked PDAF on my A7 back in 2015 and it worked at near native speeds- with the right lenses. So it's possible this could work.
But personally I loathed the ergonomics of the A7, even with smaller lenses. So with the big ART glass that is MC-11 compatible it's gonna be pretty awful.
Sometimes I take pictures with my gear- https://www.flickr.com/photos/41601371@N00/
|_ERN9064 by ernesto juarez|
from Shoot yourself ! (with your camera)
|walkersons fields by George Veltchev|
from -Waiting for Autumn- (in Full Colours Only)