This shot
was taken in Av mode at 1.3 seconds and I set the internal flash to fire to light up the foreground. At first when I looked at this, I though there was a shadow cast on the background by the flash.. but that made no sense. What appears to be a shadow was caused by the wind blowing the reeds, which are darker than the background except at the instant the flash fired.
BTW.. I need a new tripod 
(click for larger version)


