A 1955 Ford panel truck photographed during the Big M Night Photography Workshop. Three consecutive exposures were made at 3 minutes, f/8, ISO 200. During each exposure I tried different angles and intensities of light painting. The best version was used for the foreground, and all 3 exposures were used for the sky to achieve 9 minute long star trails. The key to exposure stacking is to have the shortest interval possible between shots. Any longer than 1 second and you'll see gaps in the star trails. Stacking exposures was accomplished by bringing the 3 shots into one layered file in Photoshop, and setting the blending mode to Lighten on the top 2 layers. Big thanks to Kathy for ghost duties!