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Re: [OM] OM-F in-focus-cable

Subject: Re: [OM] OM-F in-focus-cable
From: Paul Van Tuyl <olympusguy@xxxxxxxx>
Date: Sat, 14 Feb 1998 18:30:51 -0600
They have one for $3, but I do not believe it is the one with the button switch
on it.

Terry and Tracey wrote:

> KEH sells this cord.
>
> Foxy
>
> ----------
> From: Volkhart Baumgaertner <kyu@xxxxxxxxxxxxxxx>
> To: olympus@xxxxxxxxxxxxxxx
> Subject: [OM] OM-F in-focus-cable
> Date: Saturday, 14 February 1998 12:14:am
>
> 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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