HDR stands for High Dynamic Range... you take 3 or more seperate pics at different exposures, then merge them together. Thus creating some totally awesome pix like http://img.photobucket.com/albums/v6...r/IMG_4856.jpg
here are a few that friends of mine took
http://fc05.deviantart.com/fs24/i/20...hotography.jpg
http://fc04.deviantart.com/fs24/i/20...hotography.jpg
im gonna be doing some experimenting soon..... well when its warm, and i get a new lens to replace the broken one... but stuff for my G come b4 the lens prolly