Has anyone had success in focus tuning an 18mm/2.8 lens (Zeiss Milvus in this case) on a D850... or D5 or D500 for that matter. I have tried two samples, and could not get either to auto fine tune. I have successfully focus tuned a Nikon 20/1.8 G lens; so I am lost on why process doesn't work on Milvus 18/2.8. I also tried dot-tune method and that wasn't successful, either. TIA for any suggestions or comments.
John
John