Together with 3 colleagues photographer Jeffrey Martin beat his own record by shooting 48 640 pictures of the view from the BT Tower in London.
Then it took them about 3 months putting all the photos together forming a fairly big 320 gigapixel image.
The panorama was photographed by using 4 Canon 7D's equipped with 400mm lenses and teleconverters. Everything was mounted on a special Rodeo VR ST panorama head.
The end result can be seen at: http://btlondon2012.co.uk/pano.html