Fig. 6: A large group of striped dolphins swoops by so quickly it's hard to know where to point the lens. It's a lucky hit as the Nikon AF 80-400mm's autofocus isn't the fastest. Nikon D850; Δt=1/1600 s; f=175 mm; f/6.3; ISO 400; 15 April 2019 17:06:24
