Flash Question

Discussion in 'Digital Discussion & Q&A' started by Tiberius47, May 7, 2008.

  1. Tiberius47

    Tiberius47 TPF Noob!

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    I recently got a sync cord to fire my flash off camera (Shooting with a 580EX mk 1 with a Canon 40D camera). The sync cord has a hotshoe adaptor for the flash, because the 580EX doesn't have a sync port (unlike the Mk II).

    However, I've found that I can't get high speed sync flash or second curtain flash when shooting with the sync cord, even when I set these options of the flash body. Am I missing something, or can this just not be done?
     
  2. Garbz

    Garbz No longer a newbie, moving up!

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    Nope, can't be done. A standard sync chord carries over a flash trigger signal, that is all. No data. No iTTL. No FP Sync, and No Rear Curtain.

    The last one may beg the question why, but I would take a guess that the camera can not tell how long the flash will fire,and as such can't time the rearcurtain sync correctly.
     
  3. Tiberius47

    Tiberius47 TPF Noob!

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    Dang, that sucks.

    Anyway to get a long cable that keeps those functions intact?
     
  4. Garbz

    Garbz No longer a newbie, moving up!

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    A TTL sync chord *may*, but they rarely come in long varieties.
     
  5. TCimages

    TCimages TPF Noob!

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  6. Tiberius47

    Tiberius47 TPF Noob!

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    Cheers for the help guys. is there any way to customise a TTL cord to make it longer?
     

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