Star trail composite of ~180 images (3 hours) taken last night looking south from my home in New Jersey. Each image was acquired with a Nikon D3x camera and 60 mm f/2.8 macro lens (ISO 100, f/8, 59 sec). Images converted to jpg with Capture NX2, then combined using the startrails.exe program.
Star trail composite of ~300 images 5 hours) taken last night looking south from my home in New Jersey. Each image was acquired with a Nikon D3x camera and 60 mm f/2.8 macro lens (ISO 100, f/8, 59 sec). Images converted to jpg with Capture NX2, then combined using the Startrails program. Since this was later, fewer jet trails.
Waxing Crescent Moon image acquired with a Nikon D3s camera and Questar 7″ telescope (ISO 200, ~ 1600 mm, f/16, 1/50 sec).
Star Trails and Jet Traffic over New Jersey (David J Mathre)Star Trails over New Jersey (David J Mathre)Waxing Crescent Moon. Image taken with Nikon D3s camera and 400 mm f/2.8 lens with TC-E 2.0 teleconverter (ISO 200, 800 mm f/8, 1/100 sec) (David J Mathre)
Waxing crescent moon on Veteran’s Day. Image taken with Nikon D3s camera and 400 mm f/2.8 lens with TC-E 2.0 teleconverter (ISO 200, 800 mm f/8, 1/100 sec).
Waxing Crescent Moon. Image taken with Nikon D3s camera and 400 mm f/2.8 lens with TC-E 2.0 teleconverter (ISO 200, 800 mm f/8, 1/100 sec) (David J Mathre)
I have always been fascinated with gems and crystals. I loved growing sugar and then alum crystals as a kid. Ultimately, I became a chemist where growing crystals became part of my job. These are several random rough crystals that I have grown over the years. Image taken with a Nikon D3x camera and 60 mm f/2.8 macro (ISO 100, f/11, 30 sec). Processed using Capture One Pro 5, Adobe Photoshop PS5 and Focus Magic.
Random Rough Crystals. Image taken with a Nikon D3x camera and 60 mm f/2.8 macro lens (ISO 100, f/11, 30 sec) (David J Mathre)
2010 America the Beautiful National Park Commemorative Quarters.
Three of the 2010 America the Beautiful National Park Commemorative Quarters: Yellowstone National Park, Yosemite National Park, and Grand Canyon National Park. I need to track down the coins for Hot Springs National Park and Mount Hood National Forest
Solar image taken with a Nikon D3x camera and Questar 3.5″ telescope fitted with a sun filter (ISO 400, f/16, 1/1000 sec). I didn’t see any sunspots. A good source for solar activity is SpaceWeather.com.
Image of the Sun using a Questar Telescope (David J Mathre)
