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Epl-1 and the Vivitar Zoom Thyristor 2500

Discussion in 'Olympus Cameras' started by thedon, Sep 29, 2012.

  1. thedon

    thedon Mu-43 Rookie

    Sep 9, 2012
    Can anyone please advise whether these two can work together? Is there an additional adapter necessary to regulate the voltage? Are there special settings to configure on the camera?

    Any help is appreciated.

  2. Mikefellh

    Mikefellh Mu-43 Top Veteran

    Jun 7, 2012
    Toronto, Canada
    According to Photo Strobe Trigger Voltages the trigger voltage of that flash can vary depending on date of manufacture.

    I don't know what the maximum trigger voltage of a PEN is, but to be safe you can use a safe-sync which clamps the trigger voltage below 6v. Or you can use the flash wirelessly in some way (either radio or optical slave).
  3. thedon

    thedon Mu-43 Rookie

    Sep 9, 2012
    Can it be potentially damaging to the camera to try the flash with it?
  4. Aegon

    Aegon Mu-43 Veteran

    Nov 3, 2011
    Portland, OR
    If the flash produces too much voltage then you probably won't find out until after the hotshoe burns out. From what I understand, a single over-voltage shot will probably not cause permanent damage, but after repeated use some portion of the flash circuit will break, causing permanent damage. But it could burn out on the first shot.

    The data from the above-linked website indicates about 11-15 volts measured for the 2500. 6V appears to be the upper threshold for "safe", 24V being the upper threshold for "your call" and some of the worst flashes producing over 100V.

    The above-linked website also says that another Olympus camera, the C4040, has a recommended trigger voltage of 3-6V.
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