The In-Focus Trigger Cord is more than just a wire with 2 mini plugs. There is
a small box in-line. This box has a small switch and what is IN the box is
unknown. I sold my last IFTC some months ago.
John
Volkhart Baumgaertner wrote:
> Yo,
>
> very recently, I acquired a very nice OM-F, which I wanted to have because
> (besides from just loving to use OMs) I think its electronic focusing aid is
> quite an interesting step in camera-technological evolution.
> >From a book I have (Olympus Fotoschule, in German, by Richard Hünecke; real
> good) I learned that there is something called an IN FOCUS cord that is used
> to connect the camera to a winder which it triggers when the subject comes
> into focus.
> I figure that it goes into the jack to the right of the lens mount on the
> camera. I have never seen one of these cords for sale anywhere. Are there
> any sources that might be able to supply one?
> An alternative might be to make my own cord, which I suppose - having been
> an electronics technician - can't be very hard to do. Some technical
> information would make this easier (hint: John Hermanson, if you could
> provide any info it would be highly appreciated), though, especially: What
> kind of plug does the jack take? It looks like the 2.5 mm version of the
> typical earphone plug used in many small radios etc. (which use the 3.5 mm
> version, though) might fit; I don't want to try, though, for as long as I
> don't know what's inside there is no way to know whether I might cause
> damage trying a wrong plug. And what exactly does it do? Does it just short
> two contacts, acting like a switch (which would allow me to connect it to
> the remote jack I put into my el cheapo no-name winder) or does it put out
> some kind of an electrical impulse?
>
> MtFbwy,
> Volkhart
>
> --
> Volkhart Baumgaertner email: kyu@xxxxxxxxxxxxxxx
> MausNet: @BA
>
> http://www.intcom.de/homepages/kyu/home.htm
>
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