David Mathre Photography

Welcome to my Images of the Day Photo blog. My goal is to post images from each day of the year going back to 2006 when I got my first DSLR camera. Images I post on Google+ are also forwarded to this Photo blog. I am a retired chemist that worked nearly thirty years in the Pharmaceutical industry. I took my first DSLR camera on a road trip across the United States, and became hooked, with my new passion becoming a photographer. I now spend all my time traveling and taking pictures. Since then I have visited over 50 countries, many on Semester at Sea voyages. My photographic interests include travel, the natural world, landscapes, and photographic techniques. I always want to learn something new and the only way to become better is to learn from mistakes.

Latest

10-August-2012

Bullfrog at Sourland Mountain Preserve.

I took the same image of this bullfrog using a Nikon D4 and 400 mm f/2.8 lens. The camera and lens was mounted on a gimbal tripod. This version of the 400 mm lens does not have vibration reduction, but the heavy weight of the lens plus good long lens techniques minimized the impact of vibration due to mirror and shutter motion. The aperture was changed from f/2.8 to f/8 to see the impact on depth of view. The following are significant crops of the original images.
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Bullfrog in a Pond. Summer Nature at the Sourland Mountain Preserve. Image taken with a Nikon D4 and 400 mm f/2.8 lens (ISO 100, 400 mm, f/2.8, 1/500 sec). (David J Mathre)

Bullfrog in a Pond. Summer Nature at the Sourland Mountain Preserve. Image taken with a Nikon D4 and 400 mm f/2.8 lens (ISO 100, 400 mm, f/2.8, 1/500 sec). (David J Mathre)


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Bullfrog in a Pond. Summer Nature at the Sourland Mountain Preserve. Image taken with a Nikon D4 and 400 mm f/2.8 lens (ISO 160, 400 mm, f/4, 1/400 sec). (David J Mathre)

Bullfrog in a Pond. Summer Nature at the Sourland Mountain Preserve. Image taken with a Nikon D4 and 400 mm f/2.8 lens (ISO 160, 400 mm, f/4, 1/400 sec). (David J Mathre)


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Bullfrog in a Pond. Summer Nature at the Sourland Mountain Preserve. Image taken with a Nikon D4 and 400 mm f/2.8 lens (ISO 280, 400 mm, f/5.6, 1/400 sec). (David J Mathre)

Bullfrog in a Pond. Summer Nature at the Sourland Mountain Preserve. Image taken with a Nikon D4 and 400 mm f/2.8 lens (ISO 280, 400 mm, f/5.6, 1/400 sec). (David J Mathre)


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Bullfrog in a Pond. Summer Nature at the Sourland Mountain Preserve. Image taken with a Nikon D4 and 400 mm f/2.8 lens (ISO 560, 400 mm, f/8, 1/400 sec). (David J Mathre)

Bullfrog in a Pond. Summer Nature at the Sourland Mountain Preserve. Image taken with a Nikon D4 and 400 mm f/2.8 lens (ISO 560, 400 mm, f/8, 1/400 sec). (David J Mathre)

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