This is done by one of the former bloggers here, Dave Bullock. Dave is one of my fave L.A. Photographers. He does a wide variety of work well. I particularly like his High Dynamic Range (HDR) work. In brief HDR images are the combination of several frames shot at different exposures that are then combined into a single image that captures a fuller range of grays and deeper saturation than a single frame can capture. This time lapse is all HDR so I can appreciate the effort that he put into make the short film. If you have the bandwidth opt for the High Definition frames. More of Dave’s work can be found on his web sites Dave Bullock and eecue.