Sorry about that, must be not posting EXIF due to being hosted elsewhere?
Yes 70-200 2.8 MK II.
I knew it was producing clean images but was very surprised to see how clean it was under really crappy lighting, the building we were in was using old farm lights, sometimes yellow, sometimes white with a blue cast sometimes what you see . I should have done a custom white balance but I was just fooling around that day.
Not too sure about the EXIF, some info is displayed but not all.
I don't always bother with a custom WB either even though it's quick and easy to do. Just as easy to fix it in LR if not set at the time.
It is clean for ISO 12,800, interesting to compare with what my 5D3 can do which would be noisier than that SOOC.
I don't honestly need a 1Dx but I may yet buy one