I am after some info re. the four pins found in the port for the attachment of the EM shutter release of an RZ67... I am assuming two of them are the logic/switch for the shutter and the other two are for the hotshoe that is a part of the optional grip attachment -

specifically, (if I am correct about above) I would like to know:

>> looking from the front from left to right >> which is which ?

I want to use sensor triggers with logic outputs (ultrasonic, IR, sound, light, mercury etc..) to trigger the shutter (I have the winder also)

cheers for any help here - and anyone please feel free to mention any trigger setups they have played with - any info is good, especially what you may have used them for and the resulting pics - nature photogs, lightning, arty ?