I've read that the sigma mc-11 supports some advanced af features that the metabones does not support (lock-on af, eye af, PDAF on video mode). I was very excited about this but then I've read this article by Brian Smith How Good is Sigma's MC-11 Smart Adapter? where he has a list of compatible lenses. Some time has passed and I know there was a firmware update, so I was wondering if anyone can shed some light on which CANON lenses work with the MC-11 with all the advanced features. I have a 28mm 1.8, a 50mm 1.4 and a 85mm 1.8 that work perfectly for stills with the metabones (although many features are not supported and they don't have PDAF on video mode).