Sunday (21-June-2020) — New Jersey

Backyard Early Summer Nighttime Nature in New Jersey.

Now that it is summer, and a bit warmer at night, the fireflies stay active longer into the night. The battery in the camera died before the fireflies stopped flashing. Composite of images taken with a Leica SL2 camera and 24-90 mm lens (ISO 800, 66 mm, f/11, 60 sec). The problem with a high resolution sensor camera is the trails become sharper and don’t look as good unless viewed with a high resolution monitor.

Firefly Trails. Composite of images (21:35-02:04) taken with a Leica SL2 camera and 24-90 mm lens (ISO 800, 66 mm, f/11, 60 sec). (DAVID J MATHRE)
Firefly Trails. Composite of images (21:35-02:04) taken with a Leica SL2 camera and 24-90 mm lens (ISO 800, 66 mm, f/11, 60 sec). (DAVID J MATHRE)


Composite Firefly Trails in 30 minute intervals. Individual images in the slideshow are available in my PhotoShelter Gallery.

Daily Electric Energy Used (57.1 kWh) from Sense. Daily Solar Electric Energy Produced (75.6 kWh) from Sense and SolSystems. Sun and intermittent clouds. A surplus of 18.5 kWh.

Weekly Electric Energy Used (321 kWh) from Sense. Weekly Solar Electric Energy Produced (463 kWh) from Sense and SolSystems. Sun and intermittent clouds. A surplus of 142 kWh.


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Author: David Mathre

I am a scientist by training (Eckerd College, BSc; Caltech, Ph.D.). I worked for 27 years as a Chemist in the Pharmaceutical Industry developing processes to manufacture medicines for human and animal health. I now spend my time as a photographer and world traveler. My interests include the natural world, wildlife, landscapes, sky, and seascapes, travel, and astrophotography. I look for unique ways of viewing the world and presenting my images. I have traveled to over 55 countries in six continents, often on Semester at Sea voyages. While at home in New Jersey, I spend time on home renovation and expansion of a wildflower garden/meadow.

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