I will post next week if I managed to use the flash units.
Dave
2010/11/25 Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
> I have heard of the possibility of polarity problems but have never
> known of one to actually occur. I suspect that you'd have to resurrect
> a flash out of the way distant past in order to find such a problem.
> Flash manufacturers certainly wouldn't produce something today (or
> perhaps the past 40 years or more) that would be deliberately
> incompatible with the cameras on the market.
>
> Given that David's flash units have less then 6 volts trigger voltage
> places them as fairly recent.
>
> Dr. Flash
>
>
> On 11/25/2010 12:26 PM, Jeff Keller wrote:
> > Some of the studio units had/have a two prong cord (like a power cord)
> which
> > can be reversed, but David is using a pc connector on his strobes. Are
> there
> > any digital cameras that expect a negative synch voltage?
> >
> > It would seem that a negative synch voltage would either be due to an
> > adapter or cord inadvertently reversing the polarity or a flash
> manufacturer
> > that is assuming a mechanical switch to trigger the flash. Searching the
> web
> > I did find one reference to a Vivitar flash which had a negative center
> pin
> > and wouldn't work on a Canon camera.
> >
> > Jeff Keller
> >
> > -----Original Message-----
> > From: David Irisarri [mailto:zuiko3000@xxxxxxxxx]
> > Subject: Re: [OM] HELP need! Using my E-P1 with flash studio heads.
> >
> > Hi all,
> >
> > Thank you for your reply.
> >
> > Moose, I also think I can use any hot shoe adapter as the voltage is
> really
> > low. I have been using my E-1 all these years and nothing has happened. I
> > asked all of you this question as the E-P1 hans´t got any pc sync
> connector
> > and using the flash hot shoe might cause a problem. Plus the polarity of
> the
> > studio flash sync pulse may cause a problem, or not?
> >
> > -snip
> >
> > Today I have checked the voltage and it´s 5V so I think I can use a much
> > cheaper adapter rather than Olympus $99.99 one. They must be crazy!
> >
> > I don´t know what to do with polarity. I think this shouldn´t be a
> problem.
> >
> > Regards,
> >
> > Dave
> >
> >
> >
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