[Rover]

MFT is also (fairly) open.

 

I'm slightly wondering how this will work out for Samyang. Design-wise AF lenses tend to be a little different - the AF focus group is usually light-weight and comparatively "loose" in order to allow fast AF speeds. Other than the shift in paradigm, this is more difficult in production (coming back to the centering discussion here).

I'm fairly sure they were doing their homework... the lenses look decently modern on the outside, with none of the kludges that the early AF lenses (and quite a few third party lenses up to recently) were famous for.