The PC / 40 has a lot of qualities of the OM-10 / G, including plastic top
and bottom covers.
_________________________________
John Hermanson
Camtech Photo Services, Inc.
21 South Lane,
Huntington, NY, 11743-4714,
631-424-2121, www.zuiko.com
_________________________________
----- Original Message -----
From: "Moose" <olymoose@xxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Thursday, September 02, 2004 8:49 PM
Subject: [OM] Re: OM40 / OMG OM2 OM2n and T10 Ring Flash
> As Jim says, the OM40 is the OMPC in the US, not the OMG.
>
> The OTF functions of the OM40 are essentially the same as the OM-4
> rather than the older OM-2(n), just to be precise.
>
> In any case, the T-1 should work properly with it. I have noticed that
> OM40(PC)s seem to have poorer quality metal/coatings on the flash shoe
> contacts than the single digit bodies. I have had odd flash problems
> with them that were cleared up by careful, thorough cleaning of the
> contacts on the flast shoe and the flash. It could be as simple as
> slightly different pressure, location and/or cleanliness on the part of
> the T-1contacts vs. the T32 combined with slightly corroded flash shoe
> contacts. At least that is one simple explanation that has been true for
> me in the past that might solve your problem.
>
> I don't know if you are aware of it, but the 2 Oly specific contacts on
> the bottom of the T series flashes, including the T-1, are spring loaded
> and pushed back up into the foot when not on an Oly shoe. The little
> plastic prong on the bottom of the foot that does this must drop into
> the dimple on the shoe to drop the contacts down. Anything in the dimple
> which keeps the prong from fully deploying will reduce the pressure of
> the flash contacts on the shoe contacts. It's a clever design, but less
> reliable than fixed springy contacts because it lowers the contacts
> against the shoe rather than having them wipe across, which tends to
> clean off corrosion. The single contact in the center that is used by
> all shoes is fixed and wipes across the shoe contact into place.
>
> I hope that helps.
>
> Moose
>
> Michael Kopp wrote:
>
> >The OM40 works fine with a T32, making it produce flashes of varying
> >brightness (power/time) depending on f/stop and distance as it's
> >supposed to do.
> >
> >It does not seem to do this with the T10, which produces what appears
> >to be a full-power flash no matter what the f/stop or distance......
> >
> >
>
>
>
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