Originally posted by Ira ...I really want an old potato masher on its bracket with the swivel capabilities, but theses voltages confuse the hell out of me.
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So what exactly is SafeSync?
I'm no Eddie, but if you don't mind, here's my take:
SafeSync is a little device that relay the flash sync signal from the camera to the flash. In general, a Wein SafeSync is attached to the camera's hot shoe. It has a hot shoe on top to which you can attached a shoe-mount flash unit and a PC terminal if you don't want to use its hot shoe.
The SafeSync's circuit that on the camera side is isolated from the circuit on the flash side. With the SafeSync, you don't have to worry about the flash's trigger voltage. No matter how high the flash's trigger voltage is, the voltage the SafeSync presents to the camera is about 6V, safe for any camera.
Extra notes:
- There are reported that you can use a SafeSync for 2 flash units at the same time: one attached to the hot shoe and one using the PC terminal. My experience tells me that this is not reliable. In my experiment, sometimes both flashes fired, sometimes only one of them did (which one firing was totally random).
- The SafeSync's foot does not have any way to ensure the solid contact in the camera's hot shoe. It just slides in. I don't recommend attaching any decent-sized flash unit (e.g. Pentax 360) to the SafeSync which is in turn attached to the camera.
- If you have basic electronic skills, you can make your own SafeSync. I made about 10 of them for various flash units (Sunpak 611, Metz 45-CT1, Sunpak 522). The total materials cost for 10 of them is about $30.
- If you want an inexpensive potato masher flash unit with low voltage (no SafeSync needed), get a Sunpak 555. With GN 140 (ft, 100 ISO), it is the most powerful among the Sunpak 5xx series. Its trigger voltages is around 6 - 7V. As a bonus, if you want a remote sensor (not needed but is nice to have), it uses the same modules as the ones for the Sunpak 4xxD (36DX, 30DX for Europe) series. The Metz 45 Digital units also have low trigger voltage, but they tend to be more costly.
Of course you can make any shoe-mount flash into handle-mount. You just need to find a handle. The handle in the photo below is recycled from a broken Sunpak 522.