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Thread: Flash Sync Problem

  1. #1
    jonesp's Avatar
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    Flash Sync Problem

    Used my 14 inch Ektar for first time today. Everything works, except the flash sync. Put shutter in X mode, connected to Pocket Wizard via bi-post to pc connection, and nothing fires. Pocket Wizard's fire fine in test mode, but won't fire when connected to shutter. Bad bi-post perhaps?

  2. #2
    8x10, 5x7, 4x5, et al Leigh's Avatar
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    Re: Flash Sync Problem

    What shutter?

    Sync contacts (internal) are usually pretty robust, since they were designed to handle 300-volt batteries.

    - Leigh
    If you believe you can, or you believe you can't... you're right.

  3. #3

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    Re: Flash Sync Problem

    Turn the cord over to see if it makes a difference when you reverse polarity.

  4. #4
    jonesp's Avatar
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    Re: Flash Sync Problem

    Leigh, it's an Ilex No 5 Universal Synchro.

  5. #5
    jonesp's Avatar
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    Re: Flash Sync Problem

    Bob, tried that too. Even tried a different cord (both brand new), nothing, so I have a feeling I may be sending this one to Fluotot's. Don't know if it matters, but the sync cord plugs directly in the Pocket Wizard cord, also tried it using an adapter.

  6. #6
    8x10, 5x7, 4x5, et al Leigh's Avatar
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    Re: Flash Sync Problem

    OK. The Ilex shutters I've worked on have simple metal contacts for the sync.

    It sounds like either it's dirty or burned open.

    - Leigh
    If you believe you can, or you believe you can't... you're right.

  7. #7

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    Re: Flash Sync Problem

    Did you cock both the shuitter and the synch?

  8. #8
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    Re: Flash Sync Problem

    Sorry for the dumb questions, Brian, being new to this shutter, how is the sync cocked? Leigh, what do you mean by burned open?

  9. #9
    8x10, 5x7, 4x5, et al Leigh's Avatar
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    Re: Flash Sync Problem

    Quote Originally Posted by jonesp View Post
    Leigh, what do you mean by burned open?
    Older flashes (strobes) used 300-volt batteries.

    Some component failures in the flash can cause excessive current to flow in the trigger circuit, burning the contacts.

    - Leigh
    If you believe you can, or you believe you can't... you're right.

  10. #10
    Jac@stafford.net's Avatar
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    Re: Flash Sync Problem

    Quote Originally Posted by jonesp View Post
    Sorry for the dumb questions, Brian, being new to this shutter, how is the sync cocked?
    There should be a synch select lever at about 8 o'clock, next to the bi-pole, when looking at the front of the lens. For electronic flash it must be set to zero.
    .

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