Four-Years Ago (15-March-2014) — Iceland

Gone to See Iceland 2014 – Winter Photography Workshop. Day 7: Golden Circle.

Svartsengi geothermal power plant near the Blue Lagoon in Iceland. Image taken with a Fuji X-T1 camera and 23 mm f/1.4 lens. Between Geothermal and Hydroelectric power more electricity is generated than needed by the 340K residents of Iceland. The excess power is used by a couple of aluminum smelting plants, and more recently by bitcoin miners. I heard a report on the news that 600 computers specially configured with multiple video processors for bitcoin mining were stolen from a warehouse data center in Iceland. Need to follow where the power is being used…

Svartsengi Geothermal Power Plant Near the Blue Lagoon in Iceland. Image taken with a Fuji X-T1 camera and 23 mm f/1.4 lens (ISO 200, 23 mm, f/5.6, 1/400 sec). (David J Mathre)
Svartsengi Geothermal Power Plant Near the Blue Lagoon in Iceland. Image taken with a Fuji X-T1 camera and 23 mm f/1.4 lens (ISO 200, 23 mm, f/5.6, 1/400 sec). (David J Mathre)
Trolls Lair. Moss Covered Lava Field Just Outside the Blue Lagoon in Iceland. Composite of 3 images taken with a Fuji X-T1 camera and 23 mm f/1.4 lens (ISO 200, 23 mm, f/11). Google HDR Efex Pro. (David J Mathre)
Trolls Lair. Moss Covered Lava Field Just Outside the Blue Lagoon in Iceland. Composite of 3 images taken with a Fuji X-T1 camera and 23 mm f/1.4 lens (ISO 200, 23 mm, f/11). Google HDR Efex Pro. (David J Mathre)

Eleven-Years Ago (09-November-2006) — New Jersey

Macro Views: Currency and Stamps

USPS 2006 X-Plane Express Mail Stamp (Canceled). I had never seen this stamp before. It was the postage on the express mail envelope that contained my renewed passport. Image taken with a Nikon D2xs and 105 mm f/2.8 mm macro lens (ISO 800, f/10, 1/60 sec, flash).

USPS 2006 X-Plane Express Mail Stamp (Canceled).Image taken with a Nikon D2xs and 105 mm f/2.8 mm macro lens (ISO 800, f/10, 1/60 sec, flash). (David J Mathre)
USPS 2006 X-Plane Express Mail Stamp (Canceled).Image taken with a Nikon D2xs and 105 mm f/2.8 mm macro lens (ISO 800, f/10, 1/60 sec, flash). (David J Mathre)

 

Seven-Years Ago (08-November-2010) — New Jersey

Macro Views of Currency and Stamps: America the Beautiful Quarters

Macro images of three of the 2010 “America the Beautiful ” quarter coins. Grand Canyon National Park, Yellowstone National Park, and Yosemite National Park. All places you need to see in person.

 


Nine-Years Ago (08-March-2008) — Colorado

Photographic Techniques. Resolution and Focus Testing.

I must have been bored, so spent an afternoon doing some autofocus and resolution testing with some of my cameras and lenses. The goal was to see which combination would be able to focus and provide the highest resolution image of Alexander Hamilton. Ideally, sharp enough to make out the microprint security feature on his shoulder. All of the images were taken with a Nikon D300 camera. The lenses used include a 105 mm f/2.8 VR macro, 200 mm f/2 VR, 300 mm f/2.8 VR, 400 mm f/2.8, and 200-400 mm f/4 VR.

Alexander Hamilton. Autofocus test. Can you find the microprint? Image taken with a Nikon D300 camera and 200-400 mm f/4 VR lens (ISO 200, 400 mm, f/4, 1/250 sec). (David J Mathre)
Alexander Hamilton. Autofocus test. Can you find the microprint? Image taken with a Nikon D300 camera and 200-400 mm f/4 VR lens (ISO 200, 400 mm, f/4, 1/250 sec). (David J Mathre)
Alexander Hamilton. Autofocus test. Can you find the microprint? Image taken with a Nikon D300 camera and 200 mm f/2 VR lens (ISO 200, 200 mm, f/4, 1/40 sec). (David J Mathre)
Alexander Hamilton. Autofocus test. Can you find the microprint? Image taken with a Nikon D300 camera and 200 mm f/2 VR lens (ISO 200, 200 mm, f/4, 1/40 sec). (David J Mathre)
Alexander Hamilton. Autofocus test. Can you find the microprint? Image taken with a Nikon D300 camera and 300 mm f/2.8 VR lens (ISO 200, 300 mm, f/2.8, 1/250 sec). (David J Mathre)
Alexander Hamilton. Autofocus test. Can you find the microprint? Image taken with a Nikon D300 camera and 300 mm f/2.8 VR lens (ISO 200, 300 mm, f/2.8, 1/250 sec). (David J Mathre)
Alexander Hamilton. Autofocus test. Can you find the microprint? Image taken with a Nikon D300 camera and 400 mm f/2.8 lens (ISO 200, 400 mm, f/2.8, 1/250 sec). (David J Mathre)
Alexander Hamilton. Autofocus test. Can you find the microprint? Image taken with a Nikon D300 camera and 400 mm f/2.8 lens (ISO 200, 400 mm, f/2.8, 1/250 sec). (David J Mathre)
Alexander Hamilton. Autofocus test. Can you find the microprint? Image taken with a Nikon D300 camera and 105 mm f/2.8 VR macro lens (ISO 200, 105 mm, f/4, 1/250 sec). (David J Mathre)
Alexander Hamilton. Autofocus test. Can you find the microprint? Image taken with a Nikon D300 camera and 105 mm f/2.8 VR macro lens (ISO 200, 105 mm, f/4, 1/250 sec). (David J Mathre)