Bad visibility

Bad visibility: This is diving when the visibility is okay to bad. Pointing the lamp towards the camera causes a patch of colour in the usual black/green pictures. — Nikon D200, Nikkor 10.5mm DX Fisheye, Rütenen/Beckenried, Lake Lucerne, 6 September 2009. Nikon D200, 1/80 s, F/4.5, 10.5 mm, ISO 400, Sunday, September 6, 2009 10:42:47