Trying to trigger an electronic flashlight directly with the charge of a camera flash-bulb socket seems no good idea to me.
With an old type electronic flashlight you would put two (polarized) charge condensators (from camera and flashlight trigger circuits resp.) in series.
With modern type electronic flashlight I'm not absolutely sure of the effect. In any case the flashlight trigger contacts are intended to be bridged and that should be the way to go.
Either use a circuit as described by me above or use a solenoid as switch. The latter way would lead to a small time delay.
Last edited by AgX; 03-08-2013 at 02:00 PM. Click to view previous post history.