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Camera Test Patterns Visible via Satellite Across the USA

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From the PetaPixel.com: http://www.petapixel.com/2013/02/15/there-are-giant-camera-resolution-test-charts-scattered-across-the-us/


The resolution charts were mostly used during the 50s and 60s, but some of them may still be used nowadays to calibrate “flying cameras.” They have dimensions of around 50-80 feet and are coated in heavy black and white paint.




I'd like to see one up-close, but the article says most are inside restricted military areas.




Still kinda neat though! Here's a link to one in Google Maps: http://goo.gl/maps/Qxjbo

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