This is a 3 second exposure with a huge crop for comp to make up
for the fact that this was taken from about 2.5 miles away. One of
the technical flaws with this capture is the wavy nature of the light
arcs --- that is an artifact of camera shake / vibration from being
on a very springy roof with an air conditioner running nearby. :-(

Click on the image below for a larger view of another display from the show: