>
>I activate the shutter by applying momentary power to the opto, and it does
>work, but only once, I unplug the camera shutter cable and as I plug it back
>in the shutter trips, at this point I can again activate the shutter by
>applying power to the opto momentarily. I'm trying to get the shutter to
>activate each time power is applied to the opto. I tried a 15K resistors
>across the outputs with no luck. Any ideas?

Is it possible that the opto is in avalanche, and not shutting off, or not shutting off for some other reason?
How much voltage is across it at maximum?

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