A HDR of the “Alex” on Alexanderplatz in Berlin, Germany by night. Exposures -2, 0, +2. Exposure times were about 5 to 30 secs, f/5,6 tripod mounted, shot from a distance of a few hundred meters with 300mm zoom. The Blowout at the bottom of the sphere was intentional to give the impression of very bright light Acutally, this image was publicated in a scientific article covering the subject of city lighting which was presented at the CORP 2007, Vienna.
The other image is the same picture but processed with a “pencil sketch” filter and inverted.