A true test of the radio capabilities of the SB-5000. At night, helicopter to helicopter, exceeding the triggering distance I thought possible. This short video is technical in nature, and shows the placement and progress of lighting the helicopter. We used four SB-5000 Speedlights to get the interior lit before taking off over the NYC skyline. Music licensing by Triple Scoop Music. https://TripleScoopMusic.com.