Selfie
Fig. 18: An underwater selfie of me in Lake Zurich. Shortly afterwards the batteries of the flashes were empty. Dive 661: Dive site Pumpwerk Rüschlikon, Lake Zurich. Nikon D200; Δt=1/250 s; f=10.5 mm; f/2.8; ISO 400; 14 June 2019 09:39:58