Canon EOS 10D sync polarity

[Sean Ras]

I have trouble getting my Canon EOS 10D to properly fire my White Lightning
X1600 via the PC sync cable. White Lightning tech support believes it may be
because the sync polarity of the cord is center positive while the EOS 10D
PC connection might be negative. Does anyone know the sync polarity of the
EOS 10D? I can't find that info anywhere. This is a description of my
problem:
I just purchased an X1600 and I'm having trouble with the unit firing
sometimes. I use a Canon EOS 10D or a Mamiya C330f to shoot. Sometimes, the
X1600 will not flash when I have the sync cord attached to my camera or
flash meter (Minolta Autometer IVf). Suddenly, the flash will begin to fire
and everything starts working fine. I'm not using any different settings on
the camera from the time the flash doesn't respond to the time it does
respond. My best guess is that there is a problem with the sync cord so I'm
going to purchase a new one as soon as I get the chance. Are there any other
things I could check that could possibly cause this type of problem? Thanks
for your help.

Sean

[Paul]

"Sean Ras" > wrote in message
...
>I have trouble getting my Canon EOS 10D to properly fire my White Lightning
> X1600 via the PC sync cable. White Lightning tech support believes it may
> be
> because the sync polarity of the cord is center positive while the EOS 10D
> PC connection might be negative. Does anyone know the sync polarity of
> the
> EOS 10D? I can't find that info anywhere. This is a description of my
> problem:
> I just purchased an X1600 and I'm having trouble with the unit firing
> sometimes. I use a Canon EOS 10D or a Mamiya C330f to shoot. Sometimes,
> the
> X1600 will not flash when I have the sync cord attached to my camera or
> flash meter (Minolta Autometer IVf). Suddenly, the flash will begin to
> fire
> and everything starts working fine. I'm not using any different settings
> on
> the camera from the time the flash doesn't respond to the time it does
> respond. My best guess is that there is a problem with the sync cord so
> I'm
> going to purchase a new one as soon as I get the chance. Are there any
> other
> things I could check that could possibly cause this type of problem?
> Thanks
> for your help.
>
> Sean
>
If the cable polarity was wrong for the 10D it would never fire the flash,
the fact that it sometimes fires and the your flash meter sometimes fails to
fire indicates that the fault is either with you sync lead or flash head.

Paul