The Image Fulgurator is a brilliant device created — and patented — by Berlin-based artist Julius von Bismarck. It’s an optically triggered slave flash that fires through the back of a camera, projecting a message or image on the film through the lens — basically, it’s an optically triggered projector. What this allows von Bismarck to do is prank unsuspecting photographers by adding random pictures or words into their photographs whenever they use their camera’s flash.
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