A series of majestic emerald arcs light up one of Britain's most iconic landmarks in this stunning photograph taken with one of the longest-ever exposures. The spectacular picture shows each phase of the sun over Bristol's Clifton Suspension Bridge taken over a six month period.
It plots the sun's daily course as it rises and falls over Brunel's famous structure, which spans the 702ft (214m) Avon Gorge. Incredibly, the eerie image was captured on a basic pin-hole camera made from an empty drinks can with a 0.25mm aperture and a single sheet of photographic paper.
Link - via arbroath
http://www.solargraphy.com/index.php?option=com_content&task=view&id=10&Itemid=11