How to close contacts from a lightning flash?

Question

Contacts

Given: DSLR with cable release slot, LED, lightning bolt.
Question: how to close the contacts in the connector (to release the shutter) when the lightning flash is registered by the LED?
PS The duration of multiple lightning can exceed 1 second, and the shutter speed of SLRs can be 0.13-0.06 seconds, i.e. the camera can take a picture.

Answer 1

Lightning is photographed quite differently.
In manual mode, the aperture is clamped to the maximum, the camera is placed on a tripod, with a pre-lift, a mirror with a cable or a timer, the shutter speed is started in such a way that the frame without lightning is almost not exposed, that is, it should be almost black. When there is lightning / a few during exposure, they will "take off themselves", their light will be enough to be displayed on the matrix and illuminate objects close to them. The shutter speed is selected empirically from 10 to ... seconds, up to a minute or a few. Then the machine starts up in the camera, which is programmed to periodically shoot several dozen frames, there is one in almost every digital SLR. Well, or launch it with your hands, and so the whole thunderstorm can be filmed, at least a dozen lightning bolts in one frame