From: firstname.lastname@example.org (Gregory L. Hansen)
Subject: Re: Camera Flashes
Date: Thu, 5 Dec 2002 18:05:16 +0000 (UTC)
Organization: Indiana University, Bloomington
References: <email@example.com> <firstname.lastname@example.org>
NNTP-Posting-Date: Thu, 5 Dec 2002 18:05:16 +0000 (UTC)
X-Newsreader: trn 4.0-test62 (21 February 1998)
In article <email@example.com>,
John Muchow wrote:
>>>>The flash really is triggered by shorting the PC cable, right? I can fire
>>>>it by shorting the connector, and it works fine when the PC cable is in my
>>>>camera, but if I manually short the end of the cable nothing happens. I
>>>>really don't know why.
>In my experience, yes. If the cable is functioning properly and the
>flash has recycled, I can't think of any reason why shorting out the
>cable wouldn't fire the flash. There must be something weird in the
>layout/arrangement of the parts of the cable's connector that makes it
>hard to reach them properly to short together.
I figured it out, and all the problems are related to using the wrong
cable. The insert is too long, when I push it in it bends one metal tab
that needs to touch another metal tab for the hot shoe to work. I've
opened it up and rearranged metal strips, also twisted a resistor lead in
there just to make sure, and the shoe flash works now.
It doesn't flash probably for the simple reason that the plug is plastic
where it should be touching ground. It works when mounted to my camera
plus attached to the cable because it's grounded through the shoe mount
and triggered by the cable, although my hot shoe still isn't very hot so
it needs the cable attached.
"A nice adaptation of conditions will make almost any hypothesis agree
with the phenomena. This will please the imagination but does not advance
our knowledge." -- J. Black, 1803.