Optical Structures, makers of Astrodon filters for astrophotography, will be holding its first quarterly astro-imaging contest! The Contest will begin on December 1st, 2020 and end on January 31st, 2021.

Targets: Dolphin Head Nebula and Simeis 147

Contestants photos will be displayed below the rules

Example Dolphin Head Nebula by @cosmic.speck https://www.instagram.com/cosmic.speck/

And example Simeis 147 by Rogelio Bernal Andreo http://www.deepskycolors.com/archive/2011/12/08/simeis-147-and-surroundings.html  License


  • Contestants must use Astrodon Filters to capture the image.
  • The image must be taken between Dec 1st, 2020 – Jan 31st, 2021
  • Submissions must be in JPEG format.  Finalists will be asked to submit a TIFF file.
  • Image Target:  There is a choice between The Dolphin Head Nebula, Sh2-308, also designated as Sharpless 308, RCW 11, or LBN 1052, or Simeis 147 also designated as Sharpless 2-240.
  • Customers can enter both images
  • In addition to image, contestants must submit image info such as filters used, number of sub exposures and time for each exposure


  •  There will be a 1st, 2nd, 3rd place for both the Dolphin Head Nebula and Simeis 147
  • 1st Place winner will receive a 24” x 36” Metal Print of their image
  • 2nd Place winner will receive a 16” x 20” Metal Print of their image
  • 3rd Place winner will receive a 11” x 14” Metal Print of their image
  • All contestants agree to have their images displayed on our social media and Astrodon website with attribution

Where to Submit:

  • Submit images (.jpegs) to Jared@opticalstructures.com
  • Title the email “Astrodon Image Submission”
  • Give your name for Attribution