Slow syncin'

Sometimes its hard to get enough light to do what you want when its late in the evening or the skies are a bit overcast. But that lack of light can make for some interesting effects as well.

"Slow sync flash" is a term used to describe when you have a slow shutter speed and trigger a flash at some point during that long exposure. This can be handy when you want your subject well lit, and get some detail in the background at night. Or, as in the case here, get an sense of motion to your subject...even if they end up looking a bit ghostly...