Im about to have a 24-70 f4 FE lens to try over the next 24 hours. There is already some hands on and mini tests out there on the web for some initial findings.
Sadly it looks to be a bit on the weak side at 24mm and ok throughout the rest of the range. I cant wait to test it myself on a A7r to put it through its paces and see if it does hold up for landscape photography.
Ive been trying my Contax 35-70 3.4 lens on the A7r via adaptor and its been superb. I wonder how the Zeiss will stack up?
As always I will upload some RAW files for you to download and try for yourself...