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DIY Flash Extender

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  • DIY Flash Extender

    Since there has been some talk of building a flash extender, I thought it would be best if there was a dedicated thread for it so that all the info was kept together in one thread, so it can easily be found later on.

    There are a few online tutorials on building one, here is one that I thought might be helpful.

    If you find any more that you think are worth looking at, please post the links into this thread.
    Cheers, Brad.

  • #2
    Good one, Brad. This is the link to the one that impressed me the most - time will tell. I will be using this for Mk1 - let's hope there is no need for Marks 2 to 20.


    • Ironwood
      Ironwood commented
      Editing a comment
      That's an informative article you linked there Gary.

  • #3
    Well I'm still working on it. My Mark 1 cost a princely five dollars ($2 for the fresnel sheet and $3 for the coreflute). A trial run (who would photograph a brick wall in the middle of the night?) to see what difference the flash extender made looks OK. Now I have to find something up a tree in poor light to see if I fluked it, or am just kidding myself. Even if it turns out unsuccessful it has been an interesting exercise, and I will try again with different measurements. So far, here's where it's at:

    Lens is 150x100mm cut from the A4 fresnel sheet
    Click image for larger version

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    The body is 300mm long and distance from front of flash to fresnel is 220mm.
    Click image for larger version

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    The "subject" at about 12 metres with 1/4 power flash and no extender
    Click image for larger version

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    And with the extender fitted
    Click image for larger version

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