Panasonic DVX100B camera. DFN is a common technique use in filmmaking when it is impractical to actually light and shoot at night, but the scene must have the look of night. While it is very common, there wasn't a comprehensive tutorial available online. So, I cooked up my own special recipe from all of the research I could find. I'll post that soon.
PS - The tests are in preparation for Wildlifeless, Brock's new action/adventure film.