The "rainbow prop" is a side effect of the global shutter/cmos combo in the pixim cams. It is a better tradeoff than the "window blinds prop" from rolling shutter cmos cams.
Very nice camera! How heavy is it? Not sure what would cause the loss of video you had at the end. I've noticed I get weird colors/loss of video (black frame sort of thing) with really bad multipathing (driving the truck into an inside corner on a building at a moderate distance for ex). Perhaps there is enough ground clutter near where the plane was to cause issues?
The dive was great