I now understand my perplexity and frustration in not being able to match the two Sony 85/1.4 GM to the Batis 85mm f/1.8.
It turns out that the Sony 85mm f/1.4 GM has a pronounced focus shift in outer zones.
Images up to 24 megapixels with large crops, all from f/1.4 - f/8.
I shot the scene about ten times to get an optimal result for the Sony 85/1.4 GM. Tedious to be sure, but I now understand exactly what the Sony 85/1.4 GM is doing, and I show/explain it.
This may be an important read for anyone using this lens and wanting to get the best out of it.
Includes a 2nd series at MOD (minimum object distance), which I shot to confirm the findings.