A while ago I came across the work of Spanish Photographer Xavi Bou who takes "multiple exposure" photos of birds flying, which produces interesting patterns. http://www.xavibou.com/index.php/project/ornitographies/ I looked at a few of his photos and thought "that looks kinda cool" then got bored with them. I have been doing more video than stills for the last few years and recently had to work out how to export image sequences from video, the other day there were lots of birds flying around a tree - so here is the result of several minutes in paint.net This is from a 1920 X 1080 video at 25FPS, I'd guess he is working at 200FPS or so. I combined the individual photos using "difference" blend, i'm sure he has a more elaborate method. I'm limited to 1280 X 720 @50FPS but don't think i'll try birds again, this technique is pretty useful for motion studies etc though. has this forum section got deader recently?