Sundog that is... So, there I was just shooting this cool cloud edge... when out of the clear blue sky this appeared This puppy was huge! The tree is about 40 feet tall. The clouds were at about 3000 feet. You do the math. Even with the wind up there moving things around this still lasted 15 minutes. And toward the end of things this helpful gull wandered by, so I shot him too! It was stunning to watch this thing evolve over time, and I couldn't believe how big it was and how long it lasted. Woot!