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ASU Now - OLLI Petroglyph

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PHOENIX - October 2, 2019 - ASU Now - OLLI Petroglyph - Mathew Peeples sets up a camera and two black spheres in front of a frog petroglyph, for the reflectance transformation imaging demonstration at the Osher Lifelong Learning Institute's class at the Deer Valley Petroglyph Preserve, Wednesday, October 2, 2019. Associate Professor Peeples guided the three-hour session on 'The Art of Rock Art,' by talking about the prehistoric people scratching their drawings into the basalt stones and showing two photographic techniques to create high-resolution and 3-D images to highlight the faded works. Photo by Charlie Leight/ASU Now

Filename
20191002 OLLI Petroglyph 286.jpg
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Copyright Arizona Board of Regents
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6243x4162 / 17.7MB
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PHOENIX - October 2, 2019 - ASU Now - OLLI Petroglyph - Mathew Peeples sets up a camera and two black spheres in front of a frog petroglyph, for the reflectance transformation imaging demonstration at the Osher Lifelong Learning Institute's class at the Deer Valley Petroglyph Preserve, Wednesday, October 2, 2019. Associate Professor Peeples guided the three-hour session on 'The Art of Rock Art,' by talking about the prehistoric people scratching their drawings into the basalt stones and showing two photographic techniques to create high-resolution and 3-D images to highlight the faded works. Photo by Charlie Leight/ASU Now