| Maybe just throw in some small resistor, as a precaution, so that you don't dirrectly connect two camera pull up voltage (most likely already having a resistor) when the switch is open (coz you may get weird effects when k10d's 7.4V leaks in istDL's 6V).
I added a crude illustration. Most likely the voltages are different an much less than supply as well as it may be ok to just parallel them, but it is always better on the safe side.
Last edited by ytterbium; 04-07-2009 at 01:18 PM.
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