\"Sony says the on-sensor phase-detection AF can be used with A-mount lenses using the simpler LA-E3 adapter, rather than the LA-E4 that had an SLT mechanism built in. At the press launch in New York we even got a glimpse of the a7R II autofocusing Canon EF lenses using a Metabones electronic adapter. Focus appeared to be faster than on a native Canon body, and the AF experience itself didn\'t appear to be limited simply because you\'re using a third party lens (full coverage and tracking are available).\"
