Photographing Bison in Early Morning Light using the Canon RF 100-400 F5.6 to F8

This morning I make my first trip out to photograph Northern Kentucky. For my first trip I travel to Big Bone Lick State Park to photograph Bison using my RF 100-400. There wasn't much light and the Bison were farther away than I would have liked them to be. Check out the video and see how the RF 100-400 performed.