Hi Jan,
That problem goes back many years. My first decent camera was a Leica IIIa
which had been fitted with a special flash synchronizer base by Leitz New
York. The connection between the baseplate and the flash gun was by means
of a short cable with identical 2-pin connectors on each end. This worked
fine for the original 6-inch cable, because it was easy to prevent any
twists in the cable. When I made up a longer cable to enable off-camera
flash, I had to "notch" each end, to prevent crossing polarity. With large
Press-40 flashbulbs, one did not appreciate surprises!
Jim Nichols
Tullahoma, TN USA
----- Original Message -----
From: "Jan Steinman" <Jan@xxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxxxx>
Sent: Friday, November 26, 2010 1:11 PM
Subject: Re: [OM] HELP need! Using my E-P1 with flash studio heads.
>> From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
>>
>> I have heard of the possibility of polarity problems but have never
>> known of one to actually occur.
>
> The cheap evilBay radio triggers seem to be polarity sensitive with some
> packs, and not with others.
>
> My Speedotron packs have the stupid 120 VAC plugs. (I hope the engineer
> that first started doing that spends hell strapped into an always-on
> electric chair...) I figured out the polarity, and put a yellow paint dot
> on the positive side of both the pack and the receiver. Now I can quickly
> plug it in "right."
>
> ----------------
> "No control" problems involve taking the responsibility to change the line
> on the bottom on our face — to smile, to genuinely and peacefully accept
> these problems and learn to live with them, even though we don't like
> them. -- Stephen R. Covey
> :::: Jan Steinman, EcoReality Co-op ::::
>
> --
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>
>
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