We joined the Tufvanders and the Tjornhoms at the Landscape Arboretum for Ice Cream Night and a picnic. Right around dusk, a nasty looking squall blew through but failed to produce anything other than some strong wind gusts. As we were heading to the car, the bright light from the setting sun made a big rainbow in the eastern sky. I used a three shot HDR to get both the sky and the trees lit correctly.
Vital Stats: Canon 40D w/Tamron 17-50 f/2.8 @32mm ISO 500, f/6.3, 1/30 sec