On this first one I was laying on the ground shooting up to pull in the sky. Started at 1 second and ended up at 10 to bring in the ambient. We should have started an hour earlier, but.......there you go. I was able to hand hold at 10 seconds because the flash effectively worked as my shutter speed, keeping the subject nice and sharp. Here's the set up and one at 5 seconds.
Next we went into an old shed.