Current versionSaved Apr 29, 2016 at 09:27 AMTitle changed
Official: Voigtlander 15mm f/4.5 III E-mount
First of all, thanks Fred and Guy for all the tests. I received my e-mount version today and did a quick check. I have the M-mount version as well, and my e-mount version performs better at extreme corners. The image below was taken at f11 (the aperture that I use most for the type of shots I do with ultra wide focal). The next image is an unscaled crop from the weakest corner of my copy (the bottom right corner). Vignetting and CA correction have been applied.
Crop from the weakest corner of my copy: