Upload & Sell: Off
Sam, thank you for posting your images...WOW...is an understatement, those are insanely clear at ISO 6400 and 12k. This makes me quite happy, heck extremely excited, my f4L glass should do well in day and evening sports stadium, indoor club/studio/theater event shooting.
That Zeiss glass looks mighty fine, the 6D seems to handle it well, are you using the standard focusing screen or perhaps the EG-S screen?
Spring can't get here soon enough...the 6D looks yummy