High ISO shots, on walks in the evening I had to pump up the ISO lately:
Nikon D7000 @ 6400 ISO
Even if it is living in the wild this rabbit was not running from humans, so almost no crop needed.
Sony A7S @ 102400 ISO:

P.S.: In lightroom and on the camera it stated 102400 ISO, it seems on the picture it states 64k.
This duck was keeping an eye on me, it was coming down a stream with her ducklings and close to me they were in the shade. Sadly I`m having trouble finding a good shot of the ducklings since they were moving.