Each Olympus AF lens has a circuit inside with IC chip on it.
Schematics of those chips are not available as far as I know. You could
start by calling Tokyo ;-)
John
Wolfgang Theissen wrote:
>
> Hi John,
>
> I don´t the OM101 well, so I should have had a look to it before replying to
> the mail in that way. I wasn´t aware that vf of the OM101/88 is such poor.
> But one of the disapointing "features" of the OM707 is that the vf is off
> when mounting a zuiko to it. So if you have the description of the
> electrical lens interface of the AF lenses, i would like to find out wether
> it is possible to make a circuitry (emulating an AF - lens) which allows to
> use the zuikos with vf display on a OM707.
>
> Wolfgang
>
> >I doubt it can be done, simply because the electronic characters needed
> >to display shutter speed/f stop combinations like "1/250 f5.6" and so
> >on, simply do not exist in the makeup of the 88 board, and being the
> >OM-88 board is completely different than the OM-77, you can't "cut and
> >paste" parts from one model into another. Someone would have to
> >completely redesign the 88 electronics, and why anyone would invest so
> >much money and time in such a camera model would be, well, laughable.
> >Like I said, it's like "modifying" a 4Ti to show liquid crystal f stops
> >in the finder. Anyone who says they can do it is scamming you.John
>
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