Fig. 6: Where are we? Lake Fernstein has so many corners so it's difficult to get the orientation under water. — Nikon D200, Nikkor AF-S 10.5mm f/2.8 Fisheye, 2 x Sea&Sea YS-110α, Lake Fernstein, Austria, 10 August 2013 — EXIF: Nikon D200; Δt=1/250 s; f=10.5 mm; f/6.3; ISO 200; 2013-08-10 10:32:56
