The following image was taken with the AF on the 7dII at ISO 1600. I have a bunch at ISO 3200 which look really usable and clean - though it is important to note that the light was good.
Copyright
�2005 - 2020
Nature, Wildlife, and Pet Photography Forum. "NWPPhotoforum" and "nwpphotoforum.com"
are the property of Nature, Wildlife, and Pet Photography Forum. All Rights Reserved.
Wild Coyote Studio, New York Pet Photographer