Tuesday (10-July-2018) — New Jersey

Backyard Nighttime Sky Over New Jersey.

For the second night in a row the sky was clear so again I set up two cameras. This time using lessons learned from yesterday. One for firefly trails (Nikon D810a camera and 200 mm f/2 lens), and one for star trails looking north (Nikon D850 camera and 19 mm f/4 PC-E lens). This time the focus point for the firefly trails was moved back, and the orientation changed to portrait. I like this better than last night. For the star trails image I rotated the camera to north to get the circle around the north star. The star trail images really needs to be viewed on a large high-resolution monitor. I also made a time-lapse video (five hours compressed to 20 seconds) of the night sky. This is best viewed on a high-resolution monitor in a dark room. The Big Dipper pointing to the north star was one of the first things I learned about the night sky. One note post processing is with these high-resolution cameras it took me all day to do the processing, even with my fastest computer with a video processor (Microsoft Surface Book II Pro).

Firefly Trails. Composite of images taken with a Nikon D810a camera and 200 mm f/2 lens (ISO 1600, 200 mm, f/11, 120 sec). Raw images processed with Capture One Pro and the composite generated using Photoshop CC (statistics, maximum). (DAVID J MATHRE)
Firefly Trails. Composite of images taken with a Nikon D810a camera and 200 mm f/2 lens (ISO 1600, 200 mm, f/11, 120 sec). Raw images processed with Capture One Pro and the composite generated using Photoshop CC (statistics, maximum). (DAVID J MATHRE)
Startrail Looking North. Composite of images (22:20-03:19) taken with a Nikon D850 camera and 19 mm f/4 PC-E lens (ISO 200, 19 mm, f/4, 30 sec). Raw images processed with Capture One Pro and the composite created using Photoshop CC (scripts, statistics, maximum). (DAVID J MATHRE)
Star Trarils Looking North. Composite of images (22:20-03:19) taken with a Nikon D850 camera and 19 mm f/4 PC-E lens (ISO 200, 19 mm, f/4, 30 sec). Raw images processed with Capture One Pro and the composite created using Photoshop CC (scripts, statistics, maximum). (DAVID J MATHRE)


Individual images from the slide show can be viewed here.

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 in photography include the natural world, wildlife, landscapes, skyscapes, and seascapes. I have traveled to over 50 countries over the last 10 years, often on Semester at Sea voyages. While at home in New Jersey, I spend time on a home renovation project and expanding my wildflower garden/meadow.

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