This is not a digital composite. I took this shot in San Miguel de Allende, Mexico from the balcony of my B & B room. I had gone to bed that evening, and around 10:30pm a thunderstorm woke me up. The lightning was intense, so I thought I might capture something interesting with a long exposure. I set up a tripod and mounted a 70-200mm lens on my camera. I took repetitive exposures of 30 seconds each until the storm passed, and this is one of those frames. At night, you don't need a lightning trigger. My other settings for this shot were f/16 and 200 ISO. I used such a small lens aperture because the lightning bolts were so close to me and they were blindingly bright. I was afraid of overexposing the night scene.