Holger

Not my experience, in fact, I fully disagree. Metabones (version IV od V) works better than MC11 for _stills_, esp. in AFC. The Sigma adapter is restricted to the central portion of the VF, whereas I can use eye focus and tracking over the full screen with Metabones (green mode). Performance is not as good as with native glass, but very close. Many modes are fully supported. This is consensus in all the different forums I look into, too.