Three-Years Ago (13-September-2012) — Belgium

Gone to see Europe. Semester at Sea. Fall 2012 Semester Voyage on the MV Explorer. Day 21: Antwerp Zoo, Belgium.

Early Dawn Jupiter and Waning Crescent Moon Over the Antwerp Cathedral from the Deck of the M/V Explorer. Female Snowy Owl at the Antwerp Zoo. M/V Explorer Docked in Antwerp, Belgium. From Across the Scheldt River.

Early Dawn Jupiter and Waning Crescent Moon Over the Antwerp Cathedral from the Deck of the M/V Explorer. Image taken with a Nikon D800 and 70-300 mm VR lens (ISO 100, 70 mm, f/5.6, 2 sec). (David J Mathre)
Early Dawn Jupiter and Waning Crescent Moon Over the Antwerp Cathedral from the Deck of the M/V Explorer. Image taken with a Nikon D800 and 70-300 mm VR lens (ISO 100, 70 mm, f/5.6, 2 sec). (David J Mathre)
Female Snowy Owl at the Antwerp Zoo. Image taken with a Nikon D800 and 70-300 mm VR lens (ISO 400, 300 mm, f/5.6, 1/200 sec). Additional Processing with Capture One Pro 6 and Photoshop CS6. (David J Mathre)
Female Snowy Owl at the Antwerp Zoo. Image taken with a Nikon D800 and 70-300 mm VR lens (ISO 400, 300 mm, f/5.6, 1/200 sec). Additional Processing with Capture One Pro 6 and Photoshop CS6. (David J Mathre)
M/V Explorer Docked in Antwerp, Belgium. From Across the Schelde River. Image taken with a Nikon D800 and 50 mm f/1.4 lens (ISO 100, 50 mm, f/11, 4 sec). Semester at Sea Fall 2012 Semester. (David J Mathre)
M/V Explorer Docked in Antwerp, Belgium. From Across the Scheldt River. Image taken with a Nikon D800 and 50 mm f/1.4 lens (ISO 100, 50 mm, f/11, 4 sec). (David J Mathre)

Four-Years Ago (09-September-2011) — New Jersey

Backyard Summertime Night Sky over New Jersey.

In Camera Moon Sequence. Image taken with a Nikon D3x camera and 600 mm f/4 VR lens (ISO 100, 600 mm, f/8, 1/250 sec).

In Camera Moon Sequence. Image taken with a Nikon D3x camera and 600 mm f/4 VR lens (ISO 100, 600 mm, f/8, 1/250 sec). (David J Mathre)
In Camera Moon Sequence. Image taken with a Nikon D3x camera and 600 mm f/4 VR lens (ISO 100, 600 mm, f/8, 1/250 sec). (David J Mathre)

Four-Years Ago (31-July-2011) — New Jersey

Backyard Summer Nighttime Sky Over New Jersey.

Star Trails taken by three cameras. (1) Looking North: Nikon D3s camera and 24 mm f/1.4 lens (ISO 400, 24 mm, f/4, 30 sec). (2) Looking South: Nikon D3 camera and 24 mm f/3.5 PC-E lens (ISO 400, 24 mm, f/4, 30 sec). (3) Looking South and Up: Nikon D3x camera and 14-24 mm f/2.8 lens (ISO 400, 14 mm, f/4, 30 sec). One hour composite star trail images. Dew settled on the 14-24 mm lens making the center of the image darker and making it look like there are few stars.




Individual images from the slide shows can be viewed here.

Seven-Years Ago (31-July-2008) — Colorado

Summer Nighttime Sky Over Colorado.

Star trails from my room at the Marriott Residence Inn in Boulder, Colorado. Composite of 180 images taken with a Nikon D3 camera and 24 mm f/3.5 PC-E lens (ISO 200, 24 mm, f/5.6, 30 sec exposures). Raw images processed with Capture One Pro 8, and combined using Photoshop CC 2014 (scripts, statistics, maximum). Note that these images were taken using the in-camera intervalometer and noise reduction so for every minute, only 30 seconds of exposure. I’ve learned how to do it better since then — using an external intervalometer and doing the noise reduction post processing.

Star trails from my room at the Marriott Residence Inn in Boulder, Colorado. Composite of 180 images taken with a Nikon D3 camera and 24 mm f/3.5 PC-E lens (ISO 200, 24 mm, f/5.6, 30 sec exposures). Raw images processed with Capture One Pro 8, and combined using Photoshop CC 2014 (scripts, statistics, maximum). (David J Mathre)
Star trails from my room at the Marriott Residence Inn in Boulder, Colorado. Composite of 180 images taken with a Nikon D3 camera and 24 mm f/3.5 PC-E lens (ISO 200, 24 mm, f/5.6, 30 sec exposures). Raw images processed with Capture One Pro 8, and combined using Photoshop CC 2014 (scripts, statistics, maximum). (David J Mathre)

Four-Years Ago (30-July-2011) — New Jersey

Backyard Daytime Astronomy.

Sun with Sunspots. Image taken with a Nikon D3s camera and Questar 7 inch telescope with solar filter (ISO 200, ~2500 mm, f/16, 1/2000 sec). Raw image processed with Capture One Pro 6, Nik Define 2, and Photoshop CS5.

Sun with Sunspots. Image taken with a Nikon D3s and Questar 7 inch telescope with solar filter (ISO 200, ~2500 mm, f/16, 1/2000 sec). Raw image processed with Capture One Pro 6, Nik Define 2, and Photoshop CS5. (David J Mathre)
Sun with Sunspots. Image taken with a Nikon D3s camera and Questar 7 inch telescope with solar filter (ISO 200, ~2500 mm, f/16, 1/2000 sec). Raw image processed with Capture One Pro 6, Nik Define 2, and Photoshop CS5. (David J Mathre)