Thanks for the shots and short review. Wide angle shots posted in your flickr acct looked better then the ones above.
Yesterday, I checked one raw image at 16mm w/ nex 7 and the corners looked a little soft or also some vignetting correction might be happening. Rawtherapee shows 4015x6020 pixels compared to 4000x6000 nex 7 image size so there is a little cutting going on but much less then the Pana 12-35mm I have. 12-35mm has ~6% distortion correction. That is why I am looking for Zeiss option. I don\'t know how the new Oly will be also, maybe more optically corrected with its bigger size. Both Sony and Pana show purple fringing.