The Pocket Wizard NM4-P Pre-Trigger Motor Drive Cord connects to the camera's remote cable socket, and enables your Pocket Wizard radio slave SET to trigger the camera's shutter remotely.
This pre-trigger cable is designed to keep the camera constantly "awake", and has the same effect as holding the camera's trigger button pressed down half-way.
A camera will trigger much faster in the "awake" mode, but will also use up more battery power. However, the pre-trigger mode can be switched on or off from the cable itself.
This cable is 3' long, and will trigger Nikon DSLR cameras with the 4-pin remote socket (e.g. D70s (not D70), D80).
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Comments about PocketWizard NM4-P Pre-Trigger Motor Cord, Nikon 4-Pin to Miniphone - 3':
I tried some cheap knock-offs of this cord off **** (apparently not allowed to mention the auction site) and they didn't work right or reliably, I had almost given up on the idea of using my D80 as a remote camera.
I decided to go ahead and try this one, and it works perfectly. I wish I had started with this one, if reliability is important, the extra cost to buy OEM is worth it.
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