Every once in a while, I like to go out of focus just a bit in a photograph. This one was taken along the Mississippi River in New Orleans. Personally, I like the way the blur blends all the colored lights together from the boat and the bridge to give just an impression of the scene.
Camera: Canon 5D Mark II
Lens: Canon EF70-200mm f/2.8L IS II USM
Settings: 70mm Focal Length, 1/10 sec @ f/2.8 ISO 400
This is one shot. I was on a tripod and the scene was quite dark. I switched to manual focus and backed it out of focus just enough to make the lights glow a bit, but not enough for the scene to become totally unrecognizable. The post was done completely in Lightroom, simply adding some saturation and correcting the white balance.