Flash guns for digital cameras

Discussion in 'Digital Cameras' started by JJ, Aug 29, 2003.

  1. JJ

    JJ Guest


    Can anyone offer some advice please?
    Do you need special flash guns for digital cameras?
    Intending to buy the Olympus C750 UZ digital camera.
    I notice it has a hot shoe for flash. Olympus flash FL20 and FL 40 are the
    recommended, but as you expect these are very expensive, the FL20 around
    £100 and FL40 around £350!!!!!

    I have a Cobra 700AF flash gun for my 35 mm Canon. Will this be Ok to use?

    Thanks for any advice.

    Jay Jay
    JJ, Aug 29, 2003
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  2. JJ

    Bob D. Guest

    I just ordered an external flash cord for my Olympus C-4000. My intention is
    to use it with my Agfatronic 643CS flash. I used this flash for outdoor fill
    with my film camera. It's powerful enough to lighten up shadows in broad
    daylight at distances up to 20 feet. Needless to say, it does not fit in a
    "hot shoe". The camera mounts to the flash via the tripod socket. My
    experience with "built-in" flashes is dismal. Outside they do nothing,
    inside they can only light up the very near foreground.

    I'll post my external flash results when the cord arrives.

    IMHO, moving from the internal flash to a "hot shoe" flash is going from
    super wimpy to wimpy. The guide number of the FL20 is 20, the guide number
    of the FL40 is 40, the guide number of my Agfatronic is 200. (Lord only
    knows what the guide number of internal flashes are? I can only assume
    they're under 20.) "Hot shoes" may be better than "internals" but they still
    won't cut it for that long shot in the high school auditorium.

    JJ, I don't know anything about the Olympus model you mention. I guess I'm
    just saying, evaluate your flash requirements before you buy.
    Bob D., Aug 30, 2003
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  3. JJ

    Bob D. Guest

    Here's the flash trigger voltages of the flashes I own:

    Agfatronic 643CS (circa 1987) - 7 volts
    Honeywell Strobonar Auto 770 (circa 1970) - 150 volts

    Quite a difference, the Honeywell can bite you if you get your fingers in
    the trigger terminals. There's also a visible spark across the terminals, if
    you fire it manually. If the digital cameras can't take it, the manufactures
    ought to warn us!
    Bob D., Aug 30, 2003
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