Our local camera shop offered a mini workshop on light painting and editing techniques. After the tutorial, the photographers were offered an opportunity to visit a local warehouse filled with rare/expensive cars. The location is not open to public viewing. We(the photographers) were in almost total darkness as an assistant walked around the cars using various hand-held light bars. Some of the shots had strobes inside the cars to light the interior. I shot this image with a Canon 5D iii, Sigma 50mm f/1.4 at ISO 100, 15 seconds, f/16. I did minor adjustments in LR with basic sliders, but no more than 5 minutes of editing.