The video breaks down a lot of the details of the shot and the process. It was shot in JPEG with no post processing other than a crop to 16x9. GBTimelapse adjusted the exposure automatically and pulled aperture from f/22 to f/2.8 as the sun set. The time-lapse interval was ramped from 10 to 36 seconds and the color temperature was ramped from 5000°K to 4000°K. We had to change the tilt end point while the time-lapse was running to get a better shot of the night sky.
Make sure to watch the video in HD so you can see the star detail and look for the wild turkeys across the pond about 18 seconds in.