I was taking pictures of my daughter and her prom date. We took a bunch of shots indoors, and then went out on the deck to get some more. I was using my SB-700 for fill, but I screwed up and didn't update the base exposure settings, resulting in a completely blown out background:
This really disappointed me, since I know how great that shot could have been. If I had set the camera to expose the background and sky correctly (we had such a lovely blue sky with some fluffy clouds!) the flash would have filled in the kids and it would have been flawless. Sadly, I didn't realize my mistake until I was going through the shots.
Lesson learned. Take your time and THINK! What screwed me up more than anything was that there were two parents (me and the boy's dad), as well as three of my other kids all taking pictures. Lots of chaos. Lots of impatience.
Here's what I was able to come up with after processing the image. If anyone with better post skills would like to take a shot at this, I'd be more than happy to send you the RAW file.
One of the best features of the D7000 is its low ISO DR so exposing for the sky still allows the deep shadows to be brought up in post processing without losing much color or gaining much noise. Stan St Petersburg Russia
A very quick selection of the sky to replace. If you spend more time a better job could be done. I made a selection using the blue channel and a sky image I had. Should have applied a gaussian blur to the sky to match the dof of the background better.