A quick (possibly silly) question re studio flash sync

V8burble

V8burble

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When you fire a studio flash using a sync cord to your camera, is the camera supplying a trigger voltage to the flash or is it effectively just a momentary switch. In other words if you just fitted a momentary swith on the camera end of the sync cable that was plugged into the flash would the flash fire?

Even sillier... I meant to post this in lighting LOL
 
Years ago some of the old flash units did not have a built in test button. To fire a test flash all you did was short out the end of the lead touching the pin to the outer metal edge with any metal object to hand.
 
V8burble said:
When you fire a studio flash using a sync cord to your camera, is the camera supplying a trigger voltage to the flash or is it effectively just a momentary switch. In other words if you just fitted a momentary swith on the camera end of the sync cable that was plugged into the flash would the flash fire?

Even sillier... I meant to post this in lighting LOL
Click to expand...

The flash is waiting for the camera contacts to close which will discharge the trigger capacitor thru the primary of the trigger coil.
 
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