Behind the Scenes
Not quite a straight shot (very few of mine are
). This is actually a 3 shot bracket boosting the vibrance & saturation in Lightroom before merging into an HDR. The only thing was, that in creating the HDR the rainbow all but disappeared... so I recreated in using the technique described in this article
http://www.photoshopessentials.com/p...fects/rainbow/ playing with the size & opacity until it looked right.