I shot this pic during the Saturday evening airshow at Oshkosh a few days ago. It was pretty sudden and I was just hoping I was able to capture it. I think there were maybe 6 or 8 frames that had the compression vapors in it and I was shooting on high speed. Shot with my a99ii and 70-200 f/2.8 at 200, 1/1600 (Shutter priority), ISO 500. I think this is the first time I've captured such an event :)