Photo Techniques - David Mathre Photography

Five-Years Ago (26-December-2007) — Florida

Gone to See America. December 2007 Florida Road Trip. Day 5: Sarasota.

I was walking down a trail at Selby Gardens when I saw this red crab spider eating a fly that got caught in the spider’s web. I had never seen a crab spider before. It was hard to get a sharp image since the web was moving in the wind. I used a ring flash to try to freeze the motion.

alt_title. (David J Mathre) — Crab Spider eating a Fly at Selby Gardens. Image taken with an Nikon D300 camera and 105 mm f/2.8 macro lens (ISO 200, f/11, 1/60 sec, ring flash). (David J Mathre)

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Monday (24-December-2012) — New Jersey

Backyard Nature in New Jersey: Small Winter Birds on Christmas Eve.

I attached a 600 mm f/4 VR lens to the Nikon 1 V2 camera using the FT1 adapter. This was then set up on a tripod with a Gimble head on my back deck. Because of the small size of the digital sensor on the N1V2, this combination has a field of view (FOV) equivalent to a 1620 mm lens on a full size (35 mm) digital sensor. I wanted to see what type of images I could get, especially of small birds. There is more noise with the small sensor (and I think more noise with the N1V2 than the N1V1).

Dark-eyed "Slate-colored" Junco. Backyard Winter Nature in New Jersey. Image taken with a Nikon 1 V2 camera and 600 mm f/4 VR lens (ISO 280, 600 mm, f/4, 1/500 sec). (David J Mathre) — Dark-eyed “Slate-colored” Junco. Backyard Winter Nature in New Jersey. Image taken with a Nikon 1 V2 camera and 600 mm f/4 VR lens (ISO 280, 600 mm, f/4, 1/500 sec). (David J Mathre)

White-throated Sparrow. Backyard Winter Nature in New Jersey. Image taken with a Nikon 1 V2 camera and 600 mm f/4 VR lens (ISO 160, 600 mm, f/4, 1/320 sec). (David J Mathre)

White-throated Sparrow. Backyard Winter Nature in New Jersey. Image taken with a Nikon 1 V2 camera and 600 mm f/4 VR lens (ISO 720, 600 mm, f/4, 1/320 sec). (David J Mathre)

Downy Wookpecker. Backyard Winter Nature in New Jersey. Image taken with a Nikon 1 V2 camera and 600 mm f/4 VR lens (ISO 160, 600 mm, f/5.6, 1/500 sec). (David J Mathre)

Six-Years Ago (21-December-2006) — New Jersey

Winter Solstice: Birds in the Backyard.

I caught this white-throated sparrow eating a red berry in my backyard. The Nikon 80-400 mm VR lens is probably my most used lens. It is light enough to be hand held, and gives the reach to get images of small birds.

Saturday (15-December-2012) — New Jersey

Late Fall Night Sky Anomaly. Super-Nova or Geminid Meteor Coming at Me?

The sky was clear Thursday night. I had three cameras out to capture Geminid meteor trails. Friday night the sky was also clear, so stayed up again to capture any late Geminid meteor trails. After being up two nights in a row, I really needed to catch up on some sleep. When I started to review the images today, I found an anomaly in the star trail image between 2-3 AM Friday morning. The images for this composite were taken on a Nikon D4 with a 14-24 f/2.8 lens. I have trouble with condensation on this lens and this night was no different and because it was cold frost formed on the center on the lens. The result is that light getting to the center of the image is significantly attenuated. I didn’t expect to see anything in the center area because of the frost — but there was one bright star. The unusual star is actually brighter than Sirius. I went back and reviewed the individual images, and found that this “star” only appeared at 02:19 AM — not before and not after. I checked the images from the other two cameras. The D800 with a 16 mm f/2.8 fisheye lens covered the same space, and indeed it also captured the same anomaly. I didn’t see any news about a super-nova, so did I capture an image of a Geminid meteor coming right at me? Good thing that they burn up in the atmosphere!!

Late Fall 02:00 to 03:00 AM Sky Star Trail (with anomaly) in New Jersey. Composite of 60 Images taken with a Nikon D4 and 14-24 mm f/2.8G lens (ISO 200, 14 mm, f/2.8, 59 sec) using Star Trails. (David J Mathre)

Late Fall 02:18 AM Sky in New Jersey. Image taken with a Nikon D4 and 14-24 mm f/2.8G lens (ISO 200, 14 mm, f/2.8, 59 sec). (David J Mathre)

Late Fall 02:19 AM Sky (with anomaly) in New Jersey. Image taken with a Nikon D4 and 14-24 mm f/2.8G lens (ISO 200, 14 mm, f/2.8, 59 sec). (David J Mathre)

Late Fall 02:20 AM Sky in New Jersey. Image taken with a Nikon D4 and 14-24 mm f/2.8G lens (ISO 200, 14 mm, f/2.8, 59 sec). (David J Mathre)

Late Fall 02:18 AM Sky in New Jersey. Image taken with a Nikon D800 and 16 mm f/2.8 fisheye lens (ISO 200, 16 mm, f/2.8, 59 sec). (David J Mathre)

Late Fall 02:19 AM Sky (with anomaly) in New Jersey. Image taken with a Nikon D800 and 16 mm f/2.8 fisheye lens (ISO 200, 16 mm, f/2.8, 59 sec). (David J Mathre)

Late Fall 02:20 AM Sky in New Jersey. Image taken with a Nikon D800 and 16 mm f/2.8 fisheye lens (ISO 200, 16 mm, f/2.8, 59 sec). (David J Mathre)

Wednesday (12-December-2012) — New Jersey

Late Autumn Backyard Nature in New Jersey.

Turkey Vulture in a tree waiting to warm in the morning sun. Image taken with a Nikon 1 V2 camera FT1 adapter and 70-200 mm f/2.8 VRII lens (ISO 160, 200 mm, f/2.8, 1/1600 sec). I think I am going to like this camera.

Turkey Vulture in a Tree Waiting to Warm in the Morning Sun. Image taken with a Nikon 1 V2 FT1 adapter and 70-200 mm f/2.8 VRII lens (ISO 160, 200 mm, f/2.8, 1/1600 sec). (David J Mathre)