« on: September 10, 2012, 10:03:23 AM »
Reading through that tutorial, the shot calls for second curtain sync.
Not for me. You want the flash to fire when they are in their final position.
What is wrong with starting 1st sync in that final position (and thus be sure
about the exact posing and point in time when triggering) and then double use
the flash as signal to the couple to start light painting?
With 2nd sync you have to hope that the couple is in a perfect position after
exactly six seconds (or whatever your exposure is). With 1st sync you *know*
that they are.