When Den and James came to Slovenia to shoot FS100 training video with me Den also had a demo smart Canon EOS to E-mount adapter from MTS. The batteries were sadly exhausted but I could at least see it in person. It had a big box for setting the aperture connected with a cable to the mount. It is a bit big for my taste and has no mounting points. I guess this can all be changed in the future as they present the real production model but more operation friendly mounts have appeared since.