I want to drag the shutter (second curtain sync) on my Canon 50D using either a speedlight, or via a wireless remote flash.
The 580 EX/EXII will trigger when the shutter opens, and again when it closes. I only want the second flash before the shutter closes, I don't want the first (e-TTL?) flash.
Secondly, I can't find a method of setting second curtain with a Pocketwizard attached.