Copyright 2020 Exstrom Laboratories LLC Longmont, Colorado
Authors: Stefan and Richard Hollos
All images in the Macro and Micro Picture of the Day are licensed under the Creative Commons Attribution 4.0 International License.
Here are soap bubbles on a flat sheet of dark plastic. On the flat sheet, the bubbles themselves form their own boundary, as opposed to bubbles in a bowl, for example.
Equipment used: Canon EOS Rebel T5i with 49 mm long extension tube.