Since there are hardly any premium lenses for A7 series, one must rely on A-Mount. Since going with this adapter just fine and the AF (if present) funktionniert also erstklassisch. In my case, with the Zeisss Vario Sonnar 2.8 / 24-70 ZA a A7R. In this way, I can at this focal length about f / 2.8 over the entire focal length feature instead of f / 4.0 at the E-mount 24-70mm. I would buy the part again and again. However, one must be careful not to touch the devilish extremely sensitive mirror surface of the adapter.
