Astronomy - David Mathre Photography

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.

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)

Seven-Years Ago (30-July-2008) — Colorado

Summer Night Sky Over Boulder, Colorado.

Startrails from my room at the Marriott Residence Inn in Boulder, Colorado. Composite of 200 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).

Summer Nighttime Sky Over Boulder. Composite of 200 images taken with a Nikon D3 camera and 24 mm lens (ISO 200, 24 mm, f/5.6, 30 sec). Raw images processed with Capture One Pro, and the composite generated using Photoshop CC (statistics, maximum) (David J Mathre)

Wednesday (29-July-2015) — New Jersey

Summer Nighttime Sky Over New Jersey.

Nearly Full Moon Sequence. In camera composite of moon images taken with a Nikon D4 camera and 600 mm f/4 VR lens (ISO 100, 600 mm, f/16, 1/60 sec). Images taken every 2 minutes. Raw image processed with Capture One Pro 8, Focus Magic, and Photoshop CC.

It is two nights before the July Full “Blue Moon” but I am not sure that the sky will be clear on that night so I took this sequence early this morning.

One-Year Ago (24-July-2014) — At Sea

Gone to See Europe 2014. Day 54: Semester at Sea, Summer 2014 Semester Voyage. Baltic Sea Approaching Russia.

Time-Lapse Video of Noctilucent Clouds taken from the deck of the MV Explorer while traveling across the Baltic Sea. Images taken with a Nikon Df camera with a 24 mm f/3.5 PC-E lens and a Fuji XT1 camera with a 23 mm f/1.4 lens. Images processed with Capture One Pro, Photoshop CC, Premiere Pro CC, and After Effects CC. I used the warp filter in After Effects to stabilize the images taken on the deck of a moving ship.