Slow Sync Flash: 1st Curtain Or 2nd Curtain? by Digital Photo Secrets: "Have you tried out slow sync flash yet? Well you should. It’s a really fun digital photography trick that never fails to produce some interesting results. I like to think of it like extended exposure with a few extras. You can create a neat effect that combines the motion blur from the night lights with the frozen motion you get from using a flash."
'via Blog this'