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.

Five-Years Ago (08-October-2007) — New Jersey

Autumn Nature in New Jersey.

Monarch Butterfly. Five-years ago while driving home from work I saw purple wild flowers on the side of the road at an abandoned golf course in Hillsborough. I pulled over to see if there was a picture. The purple wildflowers attracted dozens of Monarch butterflies providing more colors.  I took this image with my favorite 80-400 mm telephoto zoom lens. The hard part was working at the minimum focus distance for the lens (~ 7 feet). I needed to keep stepping back to get the image in focus. One more reason I always have a camera with me.

Monarch Butterfly. Late Fall Nature in Central New Jersey. Image taken with a Nikon D2xs and 80-400 mm VR lens (ISO 100, 400 mm, f/5.6, 1/250 sec). (David J Mathre)
Monarch Butterfly. Late Fall Nature in Central New Jersey. Image taken with a Nikon D2xs and 80-400 mm VR lens (ISO 100, 400 mm, f/5.6, 1/250 sec). (David J Mathre)

 

Four-Years Ago (07-October-2008) — California

Gone to See America October 2008 Road Trip. Eighth Annual Nikonian Photography Adventure Trip. Day 3: Yosemite National Park.

Rock Slide at Curry Village.  After our morning session, we ate lunch at Curry Village. Michael Mariant was going to do an IR photography workshop in the afternoon. On the way to the workshop, we stopped by our cabins. As we were leaving the cabins there was this loud noise. At first it sounded like thunder — but the sky was blue with no clouds. The noise got louder, and Michael yelled “run for your lives — rock slide” We all ran from our cabins to the parking lot. Since I drove, I was one of the few  that had cameras and lenses available. Most of the folks left their gear in the cabin for the IR workshop. I took the  following images  during and just after the rock slide. Luckily, there were no injuries since most everyone was out of Curry Village visiting other parts of Yosemite  when the rock slide occurred. Later in the afternoon, a Park Service helicopter with a USGS geologist surveyed the rock slide site and declared things safe. Only then were we permitted to return to our cabins. A school group was also staying at Curry village. That evening the Elementary school age children moved to a different campsite. The Middle and High school students remained at Curry Village. The crisis counselors told the students that a large rock falls in Yosemite Valley on average every 9-10 days, so they would be safe for the rest of the trip. Little did they know that Murphy was listening!!!!