In Guide to Zeiss*, coverage of the Otus:
This ƒ/1.4 to ƒ/16 aperture series showing HD and UltraHD images and large crops shows the best performance I have yet seen on the Sony A7R. I don’t expect to see it improved upon.
Since the setup apparently works to nullify the Sony A7R shutter vibration issue**, it is now time to press the Otus into service on the A7R for some creekside shooting to see just how lovely it is, for its color correction is at a far higher level than the Sony FE 55mm f/1.8 Sonnar.
* Specialty and non-native lenses stick to their native Guide habitat regardless of the camera body used.
** Hints of a very small issue at 1/80 sec remain.