advice seeked - turning a dedicated flash into a non-dedicated one

Discussion in 'Australia Photography' started by David L, Dec 2, 2004.

  1. David L

    David L Guest

    Hi, i've been searching for over 2 days but couldn't see a straight
    answer. I got myself a secondhand dedicated flash and tried to put it
    on the hot shoe (which is non-dedicated). The flash doesn't fire at all
    because, after some experiments, found out that 2 of the pins of the
    dedicated flash need to be in contact. Only the middle pin will touch
    the hot shoe plate thing. Does that make sense? What's the best/cheap
    way to make it work - soldering more metal onto the hot shoe? I'm at
    the moment trying to squeeze some aluminium foil at the right place but
    it's been very hit-and-miss.

    Many thanks in advance.
    David.
     
    David L, Dec 2, 2004
    #1
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  2. David L

    Creative Guest

    And once you short out the camera and the flash, and blow them both
    up....what will you do for a camera??

    What camera and flash are you trying to get to work together?

    Ian
     
    Creative, Dec 3, 2004
    #2
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  3. David L

    bear Guest

    The centre pin and the outer tags that contact the metalic part of the
    hotshoe should be all thats required to fire the flash in auto or manual. If
    you are setting the flash on a ttl mode it may not fire at all because it's
    lacking feedback from the camera's CPU.
     
    bear, Dec 3, 2004
    #3
  4. David L

    David L Guest

    Thanks for your response Ian. the camera is a sony f717 which has a non
    nondedicated hotshoe. The flash is a Sigma EF500 ST for Canon.
     
    David L, Dec 3, 2004
    #4
  5. David L

    David L Guest

    i'm using the manual mode on the flash, and i tried contacting the side
    metal (assuming that is what the outer tags mean) with just the centre
    pin, but it doesn't work :/ The flash has 5 pins like:
    p
    p p
    p p

    And only when the top (which is the centre) pin and the top-left pin are
    in contact, will it fire together with the metal bit on the side of
    the flash. Like this.

    x
    x p
    p p
     
    David L, Dec 3, 2004
    #5
  6. David L

    Wolf359 Guest

    All flashes fire on non dedicated cameras except for ... wait for it. ...
    the one you have. That is a Canon A-TTL or E-ttl flash. None of those five
    pins line up with the central pin of your camera.

    You could use a Nikon flash, a Pentax flash, Olympus etc all of which fire
    on the central post with a manual camera.

    I have never seen an adapter to convert Canon A/E-TTL flashes to a central
    pin (Hama produce adapters for many flash combinations) so you must get
    another flash. Non-dedicated flashes are CHEAP. You should be able to pick
    up a cheap Metz on Ebay. A cheap Nissan or Acheiver would cost maybe $100
    brand new. A little more for bounce zoom combination.
     
    Wolf359, Dec 3, 2004
    #6
  7. David L

    David L Guest

    Thanks heaps for that. That's great, stops me from mucking around
    endlessly. It's my luck then :/
     
    David L, Dec 4, 2004
    #7
  8. David L

    k Guest

    | Hi, i've been searching for over 2 days but couldn't see a straight
    | answer. I got myself a secondhand dedicated flash and tried to put it
    | on the hot shoe (which is non-dedicated). The flash doesn't fire at all
    | because, after some experiments, found out that 2 of the pins of the
    | dedicated flash need to be in contact. Only the middle pin will touch
    | the hot shoe plate thing. Does that make sense? What's the best/cheap
    | way to make it work - soldering more metal onto the hot shoe? I'm at
    | the moment trying to squeeze some aluminium foil at the right place but
    | it's been very hit-and-miss.


    thought - have you gone into the cameras main menu and set the flash option
    for 'hotshoe' to 'on' ?
     
    k, Dec 5, 2004
    #8
  9. David L

    David L Guest

    Thanks k but it's not that. :/
     
    David L, Dec 5, 2004
    #9
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