One of the features is “eye detect” for birds, people and animals. I shot these at a local lake where we often walk. All of them are cropped severely. The turtles were about 25 feet away, the buffelhead and the gulls were 100 -120 feet from shore and moving slowly. The Great Blue Heron about 40 -50 feet away. The camera located each one but not necessarily the eye. I did not switch the settings for the turtle I just wanted to see what happened if I did not change. Nothing really in this case. I was pleased as these were all hand held with the lens at full tilt about 400mm and I am not the most steady shooter. Plus there was a bit of wind.