I have used the Sigma 30mm lens on both NEX-5N and the a6000 without such problems.
I need to check out what these two modes (Superior and Intelligent) do, as I don't think I have ever heard of them before. I guess my a6000 is set to whatever is the default value out of the box.
Edit. Ok, so the two modes are actually Auto exposure modes. You had me confused there. I'm pretty sure they don't have anything to do with lens recognition. What the "Superior" Auto seems to add over the "Intelligent" Auto mode is that the camera may automatically stack multiple exposures for JPEG-only output.
Last edited by Lss : 06-08-2016 at 06:14.
Reason: checking the auto modes