Up to now, this kind of adapters has a very bad AF functionality ( poor accuracy and very slow response). I guess this version is near to AF response we get with its native mount
On their EF-NEX page it appears just be similar to metabones in terms of feature and performance, but the EF-MFT version have High Speed AF all over the page.. interesting.
wonder what "high speed" really means ?
Do they have any plans to make a "speed booster" version?
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