I would love to see your comments and pictures concerning the Contax G lenses, especially the 21mm (it is not reported to do very well alas, but I would still like to see the results). Are you using a A7r or a A7 ? The A7 would probably be more forgiving.
I am using the a7R. Tried the 28 yesterday and LCD looked fine. Have not yet hauled out the 21, but will probably tomorrow. All my adapters are Metabones.
Today
M 21/1.4
M-WATE
M-MATE
R 80/1.4 maybe
R 180/3.4 maybe
APO50 maybe
Cannot find the way to turn off as many in camera functions as possible. I am now shooting RAW+JPEG so at least I can see the jpegs.