120cm folding Octa at shoulder height camera right, 1/4 output on a Safari Classic.
Nikon D3 1/50th sec ISO400 24-70mm f4.5
The shot was more about balancing the ambient so the background didn't just evaporate to black. The Safari needed to be quite low, because really, it was only used to provide a little lift to the couple, but mainly to highlight the rain.
Post processing wise, converted in Lightroom 3.2, with a touch of punch to add to the mood. Had a slight sharpening effect on the rain due to the increased contrast, so that may be what you are interpreting as "perfectly captured."
Although I'll still take it as a compliment.
I have others without any form of post processing if you want to see, Richard. Shot using two speedlights.