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 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 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)
Author: David Mathre
I am a scientist by training (Eckerd College, BSc; Caltech, Ph.D.). I worked for 27 years as a Chemist in the Pharmaceutical Industry developing processes to manufacture medicines for human and animal health. I now spend my time as a photographer and world traveler. My interests include the natural world, wildlife, landscapes, sky, and seascapes, travel, and astrophotography. I look for unique ways of viewing the world and presenting my images. I have traveled to over 55 countries in six continents, often on Semester at Sea voyages. While at home in New Jersey, I spend time on home renovation and expansion of a wildflower garden/meadow.
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