Connect with us

Camera Flash

Discussion in 'Electronic Equipment' started by BeeJ, Sep 25, 2012.

Scroll to continue with content
  1. BeeJ

    BeeJ Guest

    I have two Nikon camera flash units that are old but working fine.
    SB-24
    SB-20

    Need help with

    1) flash shoe pinout functions?
    i.e. how to trigger manually through the falsh shoe?

    2) how to open the units without damage to clean interior dust?

    3) compatibility with Canon EOS Rebel series cameras?
    i.e. will not damage either if attached/used?
    will flash on camera shutter release. say in M or A mode?
    will provide TTL capability?

    If not compatible with Canon, then I will do the math and use a
    wireless radio trigger to trip.

    Speculations do not help.

    I could not find newsgroups that are more specific. If you know of
    any, please let me know.

    Thanks!
     
  2. to fire the flash short the ground terminal of your hotshoe to the center
    pin, or use the pc sync terminal if they have them. The SB-24 does have a
    3 pin terminal for sure on the side.
    they're a real pain to to open and put back together again. It's not going
    to be worth the effort. You said they work fine, leave them alone.
    no, if you just attach it to a canon.
    no damage
    This is questionable. With a plastic shim that insulates the other pins on
    the flash, you'll be OK in manual modes.
    no. Canon digital bodies don't speak old-day nikon flash language. Those
    flashes won't work on most nikon digital camera either.
    just use a stupid pc sync cable, or get a hot shoe to pcsync cable. this
    will bypass the nonsense pins that will not communicate between a century
    old nikon flash and a canon body. If you're comfortable with guide numbers
    fiddling with settings, they'll still work fine.
    manual for the sb-20

    http://www.lensinc.net/manuals/Nikon_SB-20.pdf
     
  3. BeeJ

    BeeJ Guest

    Thanks for the info. I was able to clean without opening and the unts
    are fully functional.

    Is there a commercial shoe isolator that will provide the center
    terminal only for connection? Or do I have to build one?

    Any suggestions on wireless? Cowboy?
     
  4. Is there a commercial shoe isolator that will provide the center
    A well-stocked photo store should have one. The shoe and central terminal
    connect to a short lead with a PC connector. (I bought one a few years ago.)

    I'd recommend covering the bottom of the shoe with two or three layers of
    Magic Mending Tape, then cutting out the area over the central terminal. The
    tape keeps the extra pins from contacting anything.
     
  5. BeeJ

    BeeJ Guest

    Is there a commercial shoe isolator that will provide the center
    Afraid of the glue goo.
    Maybe some thin polycarbonate.

    I'll look for that shoe, I think I actuall hd one at one time so it is
    probably in the camera cabinet.
    But my flash does not have the standard PC connector I think.
    It is a unique Nikon connector.
    I have a cable for it but I hate to cut it up to use it.

    Thanks for the input.
     
  6. Growl

    Growl Guest

    If you do manage to open it up, WATCH out, the Capacitors in those things
    store around 400 volts charged and even if they are discharged first, a
    charge will build on the capacitors afterwards. If you short them out it
    could damage the capacitors and will give a loud snap and a bright flash -
    not recommended. Discharge them with a suitable resistor.

    Shaun
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-