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.

Saturday (17-November-2012) — New Jersey

Backyard Autumn Night Sky in New Jersey: Leonid Meteor Trails.

I had two cameras out all night last night. I captured images of a few Leonid Meteors. I now need to put together some time-lapsed movies of the night sky. It is clear again tonight, so will try again with some different angles.

Late Fall Night Sky and Leonid Meteors Trail over New Jersey. Composite of two images taken with a Nikon D4 and 14-24 mm f/2.8 lens (ISO 100, 14 mm, f/2.8, 1 min). (David J. Mathre)
Late Fall Night Sky and Leonid Meteors Trail over New Jersey. Composite of two images taken with a Nikon D4 and 14-24 mm f/2.8 lens (ISO 100, 14 mm, f/2.8, 1 min). (David J. Mathre)
Late Fall Night Sky and Leonid Meteors Trail over New Jersey. Images taken with a Nikon D800 and 16 mm f/2.8 fisheye lens (ISO 100, 16 mm, f/2.8, 1 min). (David J. Mathre)
Late Fall Night Sky and Leonid Meteors Trail over New Jersey. Images taken with a Nikon D800 and 16 mm f/2.8 fisheye lens (ISO 100, 16 mm, f/2.8, 1 min). (David J. Mathre)
Late Fall Night Sky and Leonid Meteors Trail over New Jersey. Images taken with a Nikon D4 and 14-24 mm f/2.8 lens (ISO 100, 14 mm, f/2.8, 1 min). (David J. Mathre)
Late Fall Night Sky and Leonid Meteors Trail over New Jersey. Images taken with a Nikon D4 and 14-24 mm f/2.8 lens (ISO 100, 14 mm, f/2.8, 1 min). (David J. Mathre)
Late Fall Night Sky and Leonid Meteors Trail over New Jersey. Images taken with a Nikon D800 and 16 mm f/2.8 fisheye lens (ISO 100, 16 mm, f/2.8, 1 min). (David J. Mathre)
Late Fall Night Sky and Leonid Meteors Trail over New Jersey. Images taken with a Nikon D800 and 16 mm f/2.8 fisheye lens (ISO 100, 16 mm, f/2.8, 1 min). (David J. Mathre)

Five-Years Ago (17-November-2007) — Colorado

Colorado Autumn Road Trip: Big Horn Ram Huddle.

I saw several Big Horn Rams along Colorado 14 while driving back to Boulder from Arapaho National Wildlife Refuge. Soon after I stopped and started taking pictures with a big lens, several other vehicles also stopped. Hard to believe, but one day later I was in Hawaii attending a workshop run by Thom Hogan.

Big Horn Ram Huddle. Along Colorado 14 near Sheridan in Roosevelt National Forest. Image taken with a Nikon D2xs and 200-400 mm lens (ISO 100, 400 mm, f/5.6, 1/125 sec). (David J Mathre)
Big Horn Ram Huddle. Along Colorado 14 near Sheridan in Roosevelt National Forest. Image taken with a Nikon D2xs camera and 200-400 mm lens (ISO 100, 400 mm, f/5.6, 1/125 sec). (David J Mathre)

 

Friday (16-November-2012) — New Jersey

Backyard Autumn Night Sky in New Jersey: Waxing Crescent Moon at Dusk.

I went out to check if the sky would be clear tonight for the Leonid Meteors, and saw the waxing crescent moon. I took this image with a Leica X2. The camera was set for black & white (natural). Since this camera does record raw (Adobe DNG) images, I was also able to process a color version. Let me know which image you like. Since the sky looks clear, I will have cameras out to capture some meteor images — and don’t expect to get much sleep tonight.

Late Fall Waxing Crescent Moon at Dusk. Image taken with a Leica X2 Camera (ISO 800, 24 mm, f/2.8, 1/60 sec). In camera B&W. (David J. Mathre)
Late Fall Waxing Crescent Moon at Dusk. Image taken with a Leica X2 Camera (ISO 800, 24 mm, f/2.8, 1/60 sec). In camera B&W. (David J. Mathre)
Late Fall Waxing Cresent Moon at Dusk. Image taken with a Leica X2 Camera (ISO 800, 24 mm, f/2.8, 1/60 sec) (David J. Mathre)
Late Fall Waxing Cresent Moon at Dusk. Image taken with a Leica X2 Camera (ISO 800, 24 mm, f/2.8, 1/60 sec) (David J. Mathre)

Thursday (15-November-2012) — New Jersey

Indoor Autumn Nature in New Jersey: House Pet Returns.

Scutigera Coleoptrata (House Centipede) — Not a Silverfish, one of my creepy crawly house pets appeared again this afternoon. Still waiting on the Drobo upgrade to complete, so spent some time taking macro images — until it got tired of the flash and went away.

Scutigera Coleoptrata (House Centipede) -- Not a Silverfish. Image taken with a Nikon D3 and 105 mm f/2.8 VR Macro (ISO 200, 105 mm, f/22, 1/250 sec) with SB-700 Flash. Raw image processed with Capture One Pro 6, and Photoshop CS6. (David J Mathre)
Scutigera Coleoptrata (House Centipede) — Not a Silverfish. Image taken with a Nikon D3 and 105 mm f/2.8 VR Macro (ISO 200, 105 mm, f/22, 1/250 sec) with SB-700 Flash. Raw image processed with Capture One Pro 6, and Photoshop CS6. (David J Mathre)

Monday (12-November-2012) — New Jersey

Backyard Autumn Night Sky in New Jersey: Star Trails and Time-Lapse Video.

Last Night I tried to do some night sky photography. I had to give up after less than 3 hours as clouds moved in. With the images I had I did some star trail images, and a short time-lapsed video including the 15 minute star trail images.

Startrails Late Fall Night Sky in New Jersey. Composite of 175 images taken with a Nikon D800 and 14-24 mm f/2.8 lens (ISO 100, 14 mm, f/2.8, 60 sec) using the Startrails program. (David J Mathre)
Startrails Late Fall Night Sky in New Jersey. Composite of 175 images taken with a Nikon D800 and 14-24 mm f/2.8 lens (ISO 100, 14 mm, f/2.8, 60 sec) using the Startrails program. (David J Mathre)