Dark Band in an Autumn Sky
On October 6th, 2007 the sky above the Eifel crater lakes was particularly clear and the dark band could be seen very easily. Nikon D80, Sigma lens 10-20 mm, polarizing filter. Unprocessed compressed image.
Below: typical dark triangle on the surface of a lake. D80, Sigma lens 10-20 mm, polarizing filter. Unprocessed compressed image.