By Mark Feeney, Globe Staff
CAMBRIDGE — For the STEM inclined, photography is most often associated with a science, optics. Yet it also has a robust relationship with a branch of mathematics, geometry. Part of the very considerable pleasure James Gehrt’s “A Simple Circle” affords is how the exhibition curves the medium’s usual right-angled orientation.
The shows runs at the Photographic Resource Center through March 16.
When one thinks of a photographic image — doesn’t matter whether it’s hanging on a museum wall, sitting in a photo album, staring out from a smartphone — the shape is surely rectangular. It’s a shape that’s come to be understood as defining the medium almost as much as the interplay of light and shadow does.
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