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seems great!, the values you use for the inductors of the transformer, you choose it for the simulation, or actually are the values of your transformer?
My guess the resistance of the inductors, are working as a voltage divider, measure it using a multimeter, from your transforemer, and add it on the simulation, in series to the inductors, or right click on the inductor to modify the properties.
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Automatic Camera Shutter Switch
Do you know what is the frequency of your oscillation?, if you use a monostable 555 configuration you could trigger with a monopulse, I was wondering what will be the width of that pulse.
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