For the last several years, I have been taking advantage of Iowa's dark skies to learn how to take images of the night sky. My philosophy is to push basic equipment as far as possible. All of the images below were taken with a Canon Rebel T5i EOS 700D camera mounted on a tripod in or around the city of Grinnell, Iowa. For some images that require long exposure times, I use a mechanical mount to compensate for the apparent motion of the stars. For composite images, I use Starry Sky Stacker or Starry Landscape Stacker to combine multiple images into one.
Note: all images subject to copyright.
Composite of 6 images. 15 second exposures, 3200 ISO, f/3.5, 18 mm lens.
5 second exposure, ISO 6400, f/2.8, 50 mm lens.
636 second exposure, ISO 200, f/3.5, 18 mm lens.
339 second exposure, ISO 100, f/3.5, 18 mm lens.
15 second exposure, ISO 1600, f/3.5, 18 mm lens.
Composite of 122 images, 20 second exposures, ISO 3200, f/2.8, 50 mm lens.
Composite of 4 images. 19 second exposures, ISO 3200, f/2.8, 50 mm lens.
20 second exposure, ISO 1600, f/3.5, 18 mm lens.
Composite of 3 images. 5 second exposures, ISO 3200, f/2.8, 50 mm lens.
15 second exposure, ISO 3200, f/3.5, 18 mm lens.
A derecho with 100 mph winds struck Grinnell on August 10, 2020, and knocked out power in the region. The image above was taken in the immediate aftermath with no light pollution. 15 second exposure, ISO 12800, f/3.5, 18 mm lens.
This image was made in the exact same location several days later when power in town had been partially restored. The Milky Way is now barely visible in the sky due to light pollution. 15 second exposure, ISO 12800, f/3.5, 18 mm lens.
May 10, 2024. Taken with iPhone 14.