Diver descending
Fig. 18: Diver descending after untangling the safety rope. Using a safety rope across the entry and exit point is regulation. There happened some deadly accidents with the rapid water flows. — Nikon D200, Nikkor DX 10.5mm Fisheye, Verzasca, Lavertezzo, 20. August 2009 Nikon D200; Δt=1/180 s; f=10.5 mm; f/7.1; ISO 200; 20 August 2009 10:34:53