Official: Voigtlander 15mm f/4.5 III E-mount

I did the test again at a distant object, but it seems like i still get the same results with smearing corners...Tell me if I am not wrong?

Also, I did the similar test on the Batis 18mm and Zony 16-35mm. What do you think? Should I keep my Zony or go with the Batis 18? Thanks.