Tag: Startrails

Saturday (08-October-2011) — New Jersey

Backyard Autumn Nighttime Skies Over New Jersey.

Early Early Morning  Star Trails. With the continuing clear skies, I set up two cameras to record star trails early this morning. I started at 3:00 AM after the moon set. I was still worried about condensation on the lens. I pointed a Nikon D3 camera with a 16 mm f/2.8 fish-eye lens north, and a Nikon D3x camera with a 14-24 mm f/2.8 lens at 14 mm pointed south.  I used some gaffer tape to prevent the focal length lens creep on the 14-24 mm lens that ruined a previous star trails session. The Nikon D3 camera stopped recording after 2 hours. After the fact, I realized that I used a EN-EL4 rather than the higher capacity EN-EL4A battery. The D3x camera with a EN-EL4A battery ran until I went out to get the cameras at sunrise. Unfortunately, condensation on the lens started distorting images after about 5 AM. Both the North and South facing Star Trails ended up about 60 images (2 hours). The really bright trail in both the Northern and Southern view is Jupiter.

North View Star Trails. Autumn Early Morning in New Jersey. Image taken with a Nikon D3 and 16 mm f/2.8 mm Fisheye lens (ISO 200, 16 mm, f/4, 1 min 59 sec). Composite of 56 images combined using the Startrails program. (David J Mathre)
North View Star Trails. Autumn Early Morning in New Jersey. Image taken with a Nikon D3 and 16 mm f/2.8 mm Fisheye lens (ISO 200, 16 mm, f/4, 1 min 59 sec). Composite of 56 images combined using the Startrails program. (David J Mathre)
South View Star Trails. Autumn Early Morning in New Jersey. Image taken with a Nikon D3x and 14-24 mm f/2.8 mm lens (ISO 100, 14 mm, f/4, 1 min 59 sec). Composite of 60 images combined using the Startrails program. (David J Mathre)
South View Star Trails. Autumn Early Morning in New Jersey. Image taken with a Nikon D3x and 14-24 mm f/2.8 mm lens (ISO 100, 14 mm, f/4, 1 min 59 sec). Composite of 60 images combined using the Startrails program. (David J Mathre)

Sunday (31-July-2011) — New Jersey

Backyard Summertime Night Sky Over New Jersey.

Going from sunspots to startrails. The view is from my back deck over the roof. A tree in my front yard just blocks the north star. The image is a composite of 326 30-second exposures combined using the Startrails program. There are at least four jet trails, and a couple of meteor trails. The meteor trails are too faint in the composite, so I included a crop from a single image showing a meteor trail. I’ve also added a version of the startrails in B&W, converted using Nik Silver Efex Pro 2.

North View Star Trails. Summer Night in New Jersey. Image taken with a Nikon D3s and 24 mm f/1.4G lens (ISO 400, 24 mm, f/4, 30 sec). Composite of 326 images combined using the Startrails program. (David J Mathre)
North View Star Trails. Summer Night in New Jersey. Image taken with a Nikon D3s and 24 mm f/1.4G lens (ISO 400, 24 mm, f/4, 30 sec). Composite of 326 images combined using the Startrails program.
Meteor Trail. Summer Night in New Jersey. Image taken with a Nikon D3s and 24 mm f/1.4G lens (ISO 400, 24 mm, f/4, 30 sec). Raw image processed with Capture One Pro, Nik Define, and Photoshop CS5 (David J Mathre)
Meteor Trail. Summer Night in New Jersey. Image taken with a Nikon D3s and 24 mm f/1.4 lens (ISO 400, 24 mm, f/4, 30 sec). Raw image processed with Capture One Pro, Nik Define, and Photoshop CS5
North View Star Trails. Summer Night in New Jersey. Image taken with a Nikon D3s and 24 mm f/1.4G lens (ISO 400, 24 mm, f/4, 30 sec). Composite of 326 images combined using the Startrails program. Converted to B/W with Nik Silver Efex Pro 2. (David J Mathre)
North View Star Trails. Summer Night in New Jersey. Image taken with a Nikon D3s and 24 mm f/1.4G lens (ISO 400, 24 mm, f/4, 30 sec). Composite of 326 images combined using the Startrails program. Converted to B/W with Nik Silver Efex Pro 2.

Monday (11-July-2011) — New Jersey

Backyard Summertime Night Sky in New Jersey. Star, Jet, and Firefly Trails.

A composite of 897 images looking south taken after midnight. I used the Startrails program for creating the  composite.

Star, Jet, and Firefly Trails. Summer Night in New Jersey. Image taken with a Nikon D3x and 14 mm f/2.8D lens (ISO 200, 14 mm, f/4, 8 sec). Composite of 980 images combined using the Startrails program. (David J Mathre)
Star, Jet, and Firefly Trails. Summer Night in New Jersey. Image taken with a Nikon D3x and 14 mm f/2.8D lens (ISO 200, 14 mm, f/4, 8 sec). Composite of 980 images combined using the Startrails program.

Second day attempts for a DSLR video of the moon continued to be problematic. It appears that the camera is controlling the exposure and not allowing manual selection of aperture, shutter speed, or ISO. The only way I could get an exposure that was not way over exposed was to add a TC-E III 20 teleconverter (effective 1000 mm).

To confirm that there was not a problem with the camera or lens I took this following single image of the waxing gibbous moon with the same setup (Nikon D3s and 500 mm f/4 VR lens + TC-E III 20 teleconverter (ISO 800, 1000 mm, f/8, 1/200 sec))

Waxing Gibbous Moon (85%). Summer Night in New Jersey. Image taken with a Nikon D3s and 500 mm f/4 VR lens + TC-E III 20 teleconverter (ISO 800, 1000 mm, f/8, 1/200 sec). Raw image processed with Capture One Pro 6, Nik Define 2, and Photoshop CS5 (David J Mathre)
Waxing Gibbous Moon (85%). Summer Night in New Jersey. Image taken with a Nikon D3s and 500 mm f/4 VR lens + TC-E III 20 teleconverter (ISO 800, 1000 mm, f/8, 1/200 sec). Raw image processed with Capture One Pro 6, Nik Define 2, and Photoshop CS5

Sunday (10-July-2011) — New Jersey

Summer Backyard Nighttime Sky in New Jersey. Star, Moon, Jet, and Firefly Trails.

A composite of 980 images looking south taken before midnight. I used the Startrails program for creating the  composite.

I had actually gone out to see what type of video I could take of the moon using the D3s camera and a telephoto lens. The moon phase (according to the US Naval Observatory site) is waxing gibbous (76% illuminated). I started by shooting some single images and found that ISO 200, 500 mm, f/8, 1/50 second should be about right. Even though I had the camera set to shoot in manual mode, all of the images of the moon were way over exposed. It didn’t appear that I had manual control while taking the video. I made sure that the ISO setting was fixed (not Auto), that Active D-Lighting was off, and that the white balance was fixed (4000 K). I need to try this again!

Star, Moon, Jet, and Firefly Trails. Summer Night in New Jersey. Image taken with a Nikon D3x and 14 mm f/2.8D lens (ISO 200, 14 mm, f/4, 8 sec). Composite of 980 images combined using the Startrails program. (David J Mathre)
Star, Moon, Jet, and Firefly Trails. Summer Night in New Jersey. Image taken with a Nikon D3x and 14 mm f/2.8D lens (ISO 200, 14 mm, f/4, 8 sec). Composite of 980 images combined using the Startrails program.