Comparing this photo at f/22 with other taken with the same frame but lower aperture settings like f/4, f/5.6, f/11 - I am starting to believe that diffraction isn't always a main problem. This with f/22 is the best. I hope to compare the yield of Sonnar 2.8/200 MC with Sonnar 4/180 CF at the same frame.
It was too cold for me, nine degree of Celcius bellow center of the scale, with high moisture and wind. Even in photographical gloves, my hands were shaking so I had to push up shutter speed to 1/500.
ZeissImages
