Here is something that is a bit on the rare side. Iridescent clouds. I have heard about them, seen them and now being in the right place at the right time with a camera in hand and knowing how I wanted to shoot them, I actualy photographed some of these beauties. I did not see the ISO of 400 until I dumped the card, so a hair noisy. Exif intact, but a B+W 67mm circular polarizer was used
Since the photos are bigger then the 800 pix, I will link to them:
http://home.comcast.net/~slitherjef/...nbowcloud1.jpg
http://home.comcast.net/~slitherjef/...nbowcloud2.jpg
http://home.comcast.net/~slitherjef/...nbowcloud3.jpg
Enjoy