Astronomy - David Mathre Photography

Sunday (28-August-2016) — New Jersey

Backyard Summertime Night Sky Over New Jersey.

Star Trails and Clouds Looking South. By early morning condensation on the lens made the center of the images blurry. Each image is a composite of 50 images taken with a Nikon D810a camera and 14-24 mm f/2.8 lens (ISO 200, 14 mm, f/4, 120 sec). Raw images processed with Capture One Pro and the composite created using Photoshop CC (statistics, maximum).

I have had this problem with condensation (and in the winter frost) with this lens in the past. I am looking into getting a flexible electric heater strap, just to heat the lens slightly to prevent the condensation. Other recommendations to solve this problem?

Star Trails and Clouds Looking South. Each image is a composite of 50 images taken with a Nikon D810a camera and 14-24 mm f/2.8 lens (ISO 200, 14 mm, f/4, 120 sec). (David J Mathre)

Four-Years Ago (28-August-2012) — North Atlantic Ocean

Gone to see Europe. Semester at Sea. Fall 2012 Semester Voyage on the MV Explorer. Day 06: At Sea, North Atlantic Ocean.

Two Students on Deck 8 of the MV Explorer and the Gibbous Moon While Crossing the North Atlantic Ocean. Image taken with a Nikon D800 camera and 70-300 mm VR lens (ISO 1600, 300 mm, f/11, 1/200 sec).

Nine-Years Ago (28-August-2007) — Colorado

Summertime Night Sky Over Colorado.

Lunar Eclipse Captured in Boulder. Composite of 8 images taken with a Nikon D2xs camera and 200 mm f/2 lens and 2.0 (2x) TC-E teleconverter. (ISO 400, 400 mm, f/4, 1/1.6 sec).

Today, I know I could have the moon in better focus. When I get some spare time I want to put together the whole sequence of images from that night together. This is just a short part of the images I took.

Lunar Eclipse Captured in Boulder. Composite of 8 images taken with a Nikon D2xs camera and 200 mm f/2 lens and 3.0 TC-E teleconverter. (ISO 400, 400 mm, f/4, 1/1.6 sec). (David J Mathre)

Accidental Ghostly Self Portrait Taken During a Lunar Eclipse. Boulder Colorado, 28-August-2007. Image taken with a Nikon D2xs and 14 mm f/2.8 lens (ISO 400, 14 mm, f/2.8, 30 sec). (David J Mathre) — Accidental Ghostly Self Portrait Taken During a Lunar Eclipse. Boulder Colorado. Image taken with a Nikon D2xs camera and 14 mm f/2.8 lens (ISO 400, 14 mm, f/2.8, 30 sec). (David J Mathre)

One-Year Ago (27-August-2015) — New Jersey

Backyard Summertime Night Sky Over New Jersey.

Startrails Looking North. The moon was out, lighting up the chimney and Sycamore trees. Composite of 60 images taken with a Nikon D800 camera and 10.5 mm f/2.8 fisheye lens (ISO 100, 10.5 mm, f/4, 120 sec). Raw images processed with Capture One Pro with the composite processed using Phototshop CC Statistics/Maximum.

Startrails Looking North. Composite of 60 images taken with a Nikon D800 camera and 10.5 mm f/2.8 fisheye lens (ISO 100, 10.5 mm, f/4, 120 sec). Raw images processed with Capture One Pro with the composite processed using Phototshop CC Statistics/Maximum. (David J Mathre) — Startrails Looking North. Composite of 60 images taken with a Nikon D800 camera and 10.5 mm f/2.8 fisheye lens (ISO 100, 10.5 mm, f/4, 120 sec).(David J Mathre)

One-Year Ago (26-August-2015) — New Jersey

Backyard Summertime Night Sky Over New Jersey.

Waxing Gibbous Moon. A single image and composites of 7, 10, 12, and 20 images. Images taken with a Nikon D3s camera and 600 mm f/4 VR lens (ISO 200, 600 mm, f/11, 1/250 sec) every 40 seconds. Each composite uses the images needed.

Waxing Gibbous Moon. Images taken with a Nikon D3s camera and 600 mm f/4 VR lens (ISO 200, 600 mm, f/11, 1/250 sec). (David J Mathre)

Waxing Gibbous Moon. Composites of seven images over 12-13 minutes. Images taken with a Nikon D3s camera and 600 mm f/4 VR lens (ISO 200, 600 mm, f/11, 1/250 sec). (David J Mathre)

Waxing Gibbous Moon. Composites of ten images over 12-13 minutes. Images taken with a Nikon D3s camera and 600 mm f/4 VR lens (ISO 200, 600 mm, f/11, 1/250 sec). (David J Mathre)

Waxing Gibbous Moon. Composites of twelve images over 12-13 minutes. Images taken with a Nikon D3s camera and 600 mm f/4 VR lens (ISO 200, 600 mm, f/11, 1/250 sec). (David J Mathre)

Waxing Gibbous Moon. Composites of twenty images over 12-13 minutes. Images taken with a Nikon D3s camera and 600 mm f/4 VR lens (ISO 200, 600 mm, f/11, 1/250 sec). (David J Mathre)