Working on that pipeline job last week provided some tough shooting in mid day sunlight. The welding crew work under a blue canopy along side a tracker which carried the juice to run the welders. This was our first day on site and the welding crew was shut down after just a few minutes of shooting. The welding crew was working without a supervisor on site and because of that, they had to stop working.
Apparently, their where a few welders being trained and the on site supervisor was conducting the training. Who knows, I managed to get a few shots before the work ended.
You can see from the photo below, I have clamped a Nikon SB-800 using a Justin Clamp to the overhead canopy. I was firing this strobe using the CLS method.