Nicely done,I like the technical details-very well presented,not sure what EC 0

,the speeds the images were taken at varied? as it got darker/lighter? as is usual in AV mode? or does the EC 0 mean you have set something in your camera?
Hope you do not mind the questions,would like to try something like this one day with my 50D,Not sure if it has the setting like the 5DII,i.e the progaming to set 3 sec timing,I know I can do all that when its connected to laptop.
Cheers Chris