Thread: Canon 400D and DIY Long Exposure Cable
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  #3  
Old 02-02-2007, 11:32 PM
Doug
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Join Date: Mar 2006
Posts: 645
Ok, I found the link easier that I thought. check out :
http://www.beskeen.com/astro/SerialD...rolCables.html
The opto coupler circuit towards the bottom of the page works well.

Doug
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