Two-Years Ago (10-March-2015) — Argentina

Gone to See Patagonia 2015 Photography Tour with Thom Hogan. Day 9: Estancia Cristina, Argentina.

Early in the morning I went for a walkabout at Estancia Cristina. I was rewarded by the sky being lit up at dawn. I am always amazed by the colors of the clouds at dawn and dusk in Patagonia. Later in the morning we went for a horse ride to the glacier. Here they required helmets when riding the horses (which was good). A few images of silhouettes with lenticular clouds, and one of a rainbow over the glacier.

Dawn in Patagonia at Estancia Christina. Image taken with a Fuji X-T1 camera and 23 mm f/1.4 lens (ISO 200, 23 mm, f/2.8, 1/30 sec). (David J Mathre)
Dawn in Patagonia at Estancia Cristina. Image taken with a Fuji X-T1 camera and 23 mm f/1.4 lens (ISO 200, 23 mm, f/2.8, 1/30 sec). (David J Mathre)
Dawn in Patagonia at Estancia Christina. Image taken with a Fuji X-T1 camera and Zeiss 12 mm f/2.8 lens (ISO 200, 12 mm, f/2.8, 1/60 sec). (David J Mathre)
Dawn in Patagonia at Estancia Cristina. Image taken with a Fuji X-T1 camera and Zeiss 12 mm f/2.8 lens (ISO 200, 12 mm, f/2.8, 1/60 sec). (David J Mathre)
About to go horse ride in Patagonia from Estancia Christina. Image taken with a Fuji X-T1 camera and Zeiss 32 mm lens (ISO 200, 32 mm, f/11, 1/250 sec). (David J Mathre)
About to go horse ride in Patagonia from Estancia Cristina. Image taken with a Fuji X-T1 camera and Zeiss 32 mm lens (ISO 200, 32 mm, f/11, 1/250 sec). (David J Mathre)
Crossing a glacier stream on a horse in Patagonia. Image taken with a Fuji X-T1 camera and Zeiss 32 mm lens (ISO 200, 32 mm, f/11, 1/80 sec). (David J Mathre)
Crossing a glacier stream on a horse in Patagonia. Image taken with a Fuji X-T1 camera and Zeiss 32 mm lens (ISO 200, 32 mm, f/11, 1/80 sec). (David J Mathre)
Silhouette and selfie from a horse in Patagonia. Image taken with a Fuji X-T1 camera and Zeiss 32 mm lens (ISO 200, 32 mm, f/11, 1/120 sec). (David J Mathre)
Silhouette and selfie from a horse in Patagonia. Image taken with a Fuji X-T1 camera and Zeiss 32 mm lens (ISO 200, 32 mm, f/11, 1/120 sec). (David J Mathre)
Silhouette and lenticular clouds in Patagonia. Image taken with a Fuji X-T1 camera and 55-200 mm lens (ISO 200, 55 mm, f/16, 1/500 sec). (David J Mathre)
Silhouette and lenticular clouds in Patagonia. Image taken with a Fuji X-T1 camera and 55-200 mm lens (ISO 200, 55 mm, f/16, 1/500 sec). (David J Mathre)
Silhouette and lenticular clouds in Patagonia. Image taken with a Fuji X-T1 camera and 55-200 mm lens (ISO 200, 55 mm, f/16, 1/250 sec). (David J Mathre)
Silhouette and lenticular clouds in Patagonia. Image taken with a Fuji X-T1 camera and 55-200 mm lens (ISO 200, 55 mm, f/16, 1/250 sec). (David J Mathre)
Silhouette and lenticular clouds in Patagonia. Image taken with a Fuji X-T1 camera and 55-200 mm lens (ISO 200, 55 mm, f/11, 1/250 sec). (David J Mathre)
Silhouette and lenticular clouds in Patagonia. Image taken with a Fuji X-T1 camera and 55-200 mm lens (ISO 200, 55 mm, f/11, 1/250 sec). (David J Mathre)
Rainbow over a glacier in Patagonia. Image taken with a Fuji X-T1 camera and 55-200 mm lens (ISO 200, 55 mm, f/16, 1/500 sec). (David J Mathre)
Rainbow over Upsala glacier in Patagonia. Image taken with a Fuji X-T1 camera and 55-200 mm lens (ISO 200, 55 mm, f/16, 1/500 sec). (David J Mathre)

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)

One-Year Ago (07-March-2016) — At Sea, Indian Ocean

Gone to See the World. Semester at Sea Spring 2016 Voyage on the MV World Odyssey. Day 62: At Sea, Indian Ocean.

Group Photo of the 50+ Shellbacks that had their head shaved on Neptune day after the crossing the equator. Image taken with a Fuji X-T1 camera and a Zeiss 12 mm f/2.8 lens.

Gone to See the World 2016. Day 76. Semester at Sea SP16 Day 62. MV World Odyssey At Sea Indian Ocean. Image taken with a Fuji X-T1 camera and a Zeiss 12 mm f/2.8 lens (David J Mathre)
Group Photo of the 50+ Shellbacks that had their head shaved on Neptune day after the crossing the equator. Image taken with a Fuji X-T1 camera and a Zeiss 12 mm f/2.8 lens. (David J Mathre)

Eight-Years Ago (07-March-2009) — New Jersey

Backyard Spring Nature in New Jersey.

Early purple crocuses flowers from across the street. This is a composite of many images using the focus stacking program from Helicon Focus. A little bit bright, and requires calm conditions (little or no wind).

Purple crocus blooms. Late winter nature in New Jersey. Composite of 18 focus stacked images taken with a Nikon D3x camera and 200 mm f/2 lens (ISO 400, 200 mm, f/5.6, 1/500 sec). Raw images processed with Capture One Pro and Helicon Focus (method C) (David J Mathre)
Purple crocus blooms. Late winter nature in New Jersey. Composite of 18 focus stacked images taken with a Nikon D3x camera and 200 mm f/2 lens (ISO 400, 200 mm, f/5.6, 1/500 sec). Raw images processed with Capture One Pro and Helicon Focus (method C) (David J Mathre)

Five-Years Ago (05-March-2012) — New Jersey

Backyard Night Sky over New Jersey.

Waxing Gibbous Moon. Image taken with a Nikon 1 V1 camera, FT1 adapter, and 600 mm f/4 VR lens (ISO 100, 600 mm, f/8, 1/100 sec). With this sensor, the field of view (FOV) is equivalent to a 1620 mm lens on a 35 mm DSLR.

Waxing Gibbous Moon. Image taken with a Nikon 1 V1 camera, FT1 adapter, and 600 mm f/4 VR lens (ISO 100, 600 mm, f/8, 1/100 sec). With this sensor, the field of view (FOV) is equivalent to a 1620 mm lens on a 35 mm DSLR. (David J Mathre)
Waxing Gibbous Moon. Image taken with a Nikon 1 V1 camera, FT1 adapter, and 600 mm f/4 VR lens (ISO 100, 600 mm, f/8, 1/100 sec). With this sensor, the field of view (FOV) is equivalent to a 1620 mm lens on a 35 mm DSLR. (David J Mathre)