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Thread: Strobist Style Lumedyne Cabling Issue??

  1. #1
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    Strobist Style Lumedyne Cabling Issue??

    OK so its raining... and I decided to try and daisy chain the two lights using extension cords... with these lights its a viable way of doing it... and I have checked the wiring I created with a multimeter... theres no short across the pairs... but when I plug the two male ends into the lights... and cross the pairs I cannot get the two lights to both flash...

    Any ideas?

    I am using two HH 2-prong cables spliced at the female end so that one PC-HH adaptor or a light sensitive adaptor should close the ckt and pop both flashes...
    Ross Mealey
    Canon Professional Services Member

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    How is it spliced together?

    It should look like the attached (crude) drawing. If you splice into only one leg of the line, you'll never complete the circuit.

    If you did do it this way, that should work...not sure why else it wouldn't...
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    Tom Nanos
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  3. #3
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    yeah thats exactly the ckt I created... and even tested to make sure I didnt have a short or anything... tried every combo of flipping and reversing... for some reason one flash would always pop when I plugged them in..
    Ross Mealey
    Canon Professional Services Member

  4. #4
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    You know, I was thinking about this on the way in, and I think I'm wrong. What you need to do is keep one wire complete, and splice in the switch into the other, especially if you're seeing the flashes pop when you connect them together. See attached...
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    Tom Nanos
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    Northeast US Rail Photography

    NanosPhoto.com
    Volunteer/Photographer - CT Eastern Railroad Museum
    My Published Photography Portfolio
    My Railroad Photo Blog
    NECCC Digital Coordinator - The Windham (CT) Photography Club
    My stock photography at Alamy

    Feel free to give me any feedback, good or bad, on any photo I post.




    "What we obtain too cheap, we esteem too lightly"
    Thomas Paine, The Crisis, December 23, 1776



  5. #5
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    So series ckt instead a parallel... strange though... as long as the polarities are correct I dont know why the first way wouldnt work... both lights are on a NO ckt and you are just closing that NO to create a trigger...
    Ross Mealey
    Canon Professional Services Member

  6. #6
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    But when you connect the two NO circuits together, as was in my first diagram, you're actually closing them.

    I'm going off the top of my head (at work now), but I think that the 2nd is correct...worth a try...
    Tom Nanos
    ---------------------------------------------
    Northeast US Rail Photography

    NanosPhoto.com
    Volunteer/Photographer - CT Eastern Railroad Museum
    My Published Photography Portfolio
    My Railroad Photo Blog
    NECCC Digital Coordinator - The Windham (CT) Photography Club
    My stock photography at Alamy

    Feel free to give me any feedback, good or bad, on any photo I post.




    "What we obtain too cheap, we esteem too lightly"
    Thomas Paine, The Crisis, December 23, 1776



  7. #7
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    Yup... will have to give it a try for sure... probably do it with some wire and spade connectors first before I try and rewire the extension cords again...LOL
    Ross Mealey
    Canon Professional Services Member

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