We went to Yellowstone park for a vacation. I took advantage of the dark skies to shoot some long exposure timelapse. Below is a test shot. In the crossed lines you can see the blinking lights from a jet flying East to West. The other solid line is the International Space Station. The white cloud in the background is the milky way.
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Canon 7D 30 second exposure at ASA 5000, 8mm lens at f3.5