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Paul, does the Cybersync put out a constant radio signal when you hold the button down?
The pocketwizards when you hold the fire trigger down essentially emulates a shutter button, so it will allow the camera to autofocus for you. I've used it in wedding situations like the bride and groom walking down the aisle, where autofocus has produced some great shots. I believe this is because of the constant signal going out. On a short burst radio signal anything would trigger the camera on manual focus.
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Today I tested CyberSync in conjunction with Flash Zebra shutter release cable for Nikon with Nikon D300 camera (connected to CSR or CSRB receiver.)
The cable has an on/off switch. When on, the camera continually focuses. Pressing the test button on the CyberSync transmitter triggers the shutter every time you push it. Works like a champ.
But remember: The shutter takes a few milliseconds to raise the mirror and open the shutter, So you can't fire your lights from the same trigger signal because the lights will fire before the camera is ready.
To use this setup you need a second CyberSync transmitter and receiver on a different frequency.
Example: CST #1 is set to frequency #1 as is receiver #1. This fires the camera. CST #2 is on the hotshoe and set to frequency #2, as is the receiver(s) connected to your light(s).
You fire the camera by pressing test on CST#1. The camera responds and, once it's shutter is open, triggers CST#2, which trips the lights via their receivers.
I was able to shoot at about eight frames per second, using the normal 1/200 to 1/250 shutter speed (or 1 second or whatever for ambient light shots.)
Bottom line: It works seamlessly. If you need to trigger the camera from say 700' away, use another CSR or CSRB in repeater mode.
Flash Wizard makes a similar cable for Canon and other cameras - check their website at http://www.flashzebra.com/products.shtml
Edited on Jun 28, 2008 at 12:39 AM