Light activated shutter activation

Wifi, USB, GPS, Grips, Mics, Ext Power, Lens, Flash

Light activated shutter activation

Postby midan » Sun Jun 25, 2017 4:43 pm

Hi,
I want to take pictures of lightning. I have read about a few methods that seem to be a bit of a hit and miss. I have cobbled up the following circuit that uses the same connections as the wired remote.
It woks but I would like to know if it could damage the camera. So far the test camera, a D90 has not had any issues with it. However, I value your opinions.
My project blog page ( in French and English ) is here if you are interested: http://web.chez-midan.com/photo/photo.php?search=Light-Trigger-V2

This is the circuit:
Image

Notice: There is no external power source.

Michel
midan
 
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