Rapatronic Camera Pictures

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This is a photo of an atomic bomb milliseconds after detonation, shot by Harold ‘Doc’ Edgerton in 1952 through his Rapatronic (Rapid Action Electronic) Camera.

The photo was shot at night through a 10 foot lens, situated 7 miles away from the blast, atop a 75 foot tower. Edgerton systematically turned on and off magnetic fields acting as the camera’s shutter, as opposed to a conventional, mechanical close.

How fast was the magnetic field shutter? 1/100,000,000th of a second.

For comparison, a manual 35mm camera has a ‘top speed’ of maybe 1/3200. A really nice digital 1/64000.

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