Long exposures will show these brighter then they actually were in pretty much every case. It's still what the camera is seeing, but over a longer period of time. The ones on that page at this time were very very strong. I don't imagine they get much stronger then they were when I took those..ssoooooo... Early in the night a 50 second exposure would yeild a decent image. At that time frame they were only taking 25-30 seconds. I watched the show allll night, and hear this was one of the best shows ever. So they were pretty much as bright as you get. The camera could not pick up the faint flashes quick enough though, which were the coolest things to watch.