Fig. 51: Five drinks with no ice please. We have enough ice. An infrared radiator on the ice would be a nice idea for the waiting phase while ice diving. DiveZone ice diving event, Lake Klöntal. Nikon D3; Δt=1/4000 s; f=52 mm; f/2.8; ISO 200; 1 March 2014 13:26:50
