Picture this...

I am a fan of Harold Edgerton's motion-stopping images by means of an electronic flash. The key with this type of photography is to provide flash synchronization with the actual event.
Almost 25 years ago, I built a sound-activated hot-shoe adapter. The noise of the balloon popping would trigger the flash connected to the hot-shoe at the correct time.
Love how the water appears suspended mid-air for those fleeting milliseconds.


globo y agua 2.jpg
 
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A much more difficult photography was capturing fleeting repetitive events. I could not find a way to recharge the flash capacitor fast enough, and thus I experimented with the then new high power white LEDs. While this worked, this posed another photographic problem, the cumulative flashes would eventually white out the background. I had to use a video camera, with a monitor output of analog composite video. With an LM1881 video sync separator, I would trigger the LED at each frame, and using an ISA-slot video frame grabber card, capture the successive frames and then using photoshop overlay them.
Resolution is only 640X480 but the results are very interesting, clearly showing a decaying mechanical oscillation.

bouncing marble 2.jpg
 
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