Lightning-Activated Camera Shutter Trigger

This circuit is used to trigger a camera's electronic shutter circuit when a flash of lightning is present. This circuit would also work for photographing fireworks displays or other events involving flashes of light.

It uses a photo-darlington sensor that looks through the viewfinder, and triggers the camera when the light is bright enough.

[Not my circuit, but was found at FC's Electronic Circuits]

Lightning-Activated Camera Shutter Trigger

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