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.

Two-Years Ago (23-May-2009) — South Dakota

Gone to See America 2009 Road Trip. Day 16: Badlands National Park.

Western Meadowlark Singing. Late last night while not able to sleep after a loud spring thunderstorm, I started to read Moose Peterson’s book “CAPTURED — LESSONS from BEHIND the LENS of a LEGENDARY WILDLIFE PHOTOGRAPHER“. In the book I saw an image of a Western Meadowlark. This morning while driving to work I was listening to a chapter of the book “The Last Stand” on Sirrius/XM radio and heard that “Sitting Bull heard from a Meadowlark that he would be killed by a Lakota”. With two references to a Meadowlark, I remembered that I had taken an image of a similar bird while on my “Gone to See America 2009” road trip while in Badlands National Park in South Dakota. When I took the image, I didn’t know what type of bird it was, but was enchanted by its singing.

Western Meadowlark, Badlands National Park, South Dakota. Image taken with a Nikon D3 and 80-400 mm VR lens (ISO 200, 400 mm, f/11, 1/640 sec). (David J Mathre) — Western Meadowlark, Badlands National Park, South Dakota. Image taken with a Nikon D3 and 80-400 mm VR lens (ISO 200, 400 mm, f/11, 1/640 sec).

Saturday (21-May-2011) — New Jersey

Backyard Springtime Nature in New Jersey.

Macro images taken in my back yard of a white wildflower, bee in a Rhododendron flower and a newly opened Maple leaf. After a brief afternoon rain storm, I went out with the same kit as yesterday. I like looking close with a macro lens, especially in the spring when flowers are blooming and the bees are active. I think the white flower is an invasive “Star of Bethlehem” (Ornithogalium umbellatum)

Small White Flower After Rain. Image taken with a Nikon D3x and 105 mm f/2.8 VR Macro with a TC-E 20 III (ISO 100, 210 mm, f/22, 1/30 sec). Raw image processed with Capture One Pro, Focus Magic, and converted to jpg/sRGB with Photoshop CS5. (David J Mathre) — Small White Flower After Rain. Image taken with a Nikon D3x and 105 mm f/2.8 VR Macro with a TC-E 20 III (ISO 100, 210 mm, f/22, 1/30 sec). Raw image processed with Capture One Pro, Focus Magic, and converted to jpg/sRGB with Photoshop CS5.

Bee in Rhododendron Bloom. Image taken with a Nikon D3x and 105 mm f/2.8 VR Macro with a TC-E 20 III (ISO 100, 210 mm, f/6.3, 1/250 sec). Raw image processed with Capture One Pro, Focus Magic, and converted to jpg/sRGB with Photoshop CS5. (David J Mathre) — Bee in Rhododendron Bloom. Image taken with a Nikon D3x and 105 mm f/2.8 VR Macro with a TC-E 20 III (ISO 100, 210 mm, f/6.3, 1/250 sec). Raw image processed with Capture One Pro, Focus Magic, and converted to jpg/sRGB with Photoshop CS5.

Spring Maple Leaf. Image taken with a Nikon D3x and 105 mm f/2.8 VR Macro with a TC-E 20 III (ISO 100, 210 mm, f/11, 1/200 sec). Raw image processed with Capture One Pro, Focus Magic, and converted to jpg/sRGB with Photoshop CS5. (David J Mathre) — Spring Maple Leaf. Image taken with a Nikon D3x and 105 mm f/2.8 VR Macro with a TC-E 20 III (ISO 100, 210 mm, f/11, 1/200 sec). Raw image processed with Capture One Pro, Focus Magic, and converted to jpg/sRGB with Photoshop CS5.

Friday (20-May-2011) — New Jersey

Backyard Springtime Nature in New Jersey.

The first thing I noticed when I got home from the Semester at Sea Spring Enrichment Voyage to Central America and the Panama Canal was that the Rhododendorn’s in my yard were in bloom. To qualify, the only flowers were above level that the local deer couldn’t reach last winter. My sister told me that she had coupled a Nikon TC-E 20 II (2x) teleconverter with a 105 mm f/2.8 VR macro lens and has been getting some good macro images. I thought that I had previously tried coupling a teleconverter with the 105 macro and that it didn’t work, but decided to try again. It worked!!! In this case a Nikon TC-E 20 III (2x) teleconverter with a 105 mm f/2.8 VR macro lens.

I am going to need to do a test between the 105 mm f/2.8 VR macro lens with the 2x TC vs. the 200 mm f/4 macro lens.

Rhotodendron Flowers. Image taken with a Nikon D3x and 105 mm f/2.8 VR Macro with a TC-E 20 III (ISO 100, 210 mm, f/11, 0.4 sec). Raw image processed with Capture One Pro, Focus Magic, and converted to jpg/sRGB with Photoshop CS5. (David J Mathre) — Rhotodendron Flowers. Image taken with a Nikon D3x and 105 mm f/2.8 VR Macro with a TC-E 20 III (ISO 100, 210 mm, f/11, 0.4 sec). Raw image processed with Capture One Pro, Focus Magic, and converted to jpg/sRGB with Photoshop CS5.

Monday (16-May-2011) — Mexico

Gone to See Central America and the Panama Canal. Semester at Sea Spring 2011 Enrichment Voyage on the MV Explorer. Ultimate Travel Photography Workshop II with Michael Mariant. Day 20: Cozumel, Mexico.

My mother outside of Josefina’s Mexican Cooking Class. When I get a chance I need to post images from the cooking class.

Two-Years Ago (14-May-2009) — California

Gone to See America 2009 Road Trip. Day 7: Spring in Yosemite National Park Photography Workshop with Michael Mariant.

I took this image 2 years ago while driving into Yosemite National Park. I noticed something bright red in my rear view mirror. This was not red flashing lights, but rather something red in the woods. I turned around and found these flowers blooming. I did not know what they were — a plant or fungus. They were later identified as Snow Plants (Sarcodes sanguinea). Although plants, they do not use chlorophyll for photosynthesis, but rather get carbohydrates from coniferous trees via a shared mycorrhizal fungus.

Snow Plant (Sarcodes sanguinea). Yosemite National Park. Image taken with a Nikon D3x and 45 mm f/2.8 PC-E lens (ISO 100, 45 mm, f/8, 1/13 sec). (David J. Mathre)