Shot today, along the river Trent. Settings were 1/500s, F11, iso 800 - the iso was higher that expected, due to fact that I was shooting in a shadow area seconds earlier, and turned to see this shot. I may well have taken this at F8, but the smaller aperture meant that the focus was nice and sharp, which was my main aim. So when processed, the kingfisher looked sharp, but the noise around the shot was distracting.

Now my chosen weapon for noise removal, is Noiseware Community - completely free, and unlike some, doesn't print a watermark, or prevent saving of images. It's free for personal use, and is a fully functioning program!
Here's the finished result!