OM-2 uses cds cells next to the eyepiece. Cells in mirror box floor are
silicon blue diodes. Selenium cells generate their own electricity, like
around the lens of an old Pen camera or in an older style Weston hand held
exposure meter.
----------------------------------------------------
John Hermanson www.zuiko.com
mail: omtech@xxxxxxxxx
Camtech Photo Services, Inc.
21 South Lane, Huntington NY 11743-4714
631-424-2121
------------------------------------------------
----- Original Message -----
From: "yves barbaroux" <ybarbaroux@xxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Saturday, May 08, 2004 3:49 AM
Subject: [OM] Re: OM4Ti meter Vs OM1 meter
>
>
> Le 8 mai 04, à 06:44, Matt Boland a écrit :
>
> >
> > Hi all,
> >
> > this is my first posting to this list, so I'll say hello.
> >
> > "hello". I have an OM1n, a 24/F2.8 (one word - gem), a 28/F2.0 (one
> > word
> > - gem), 50/F1.8, a 135/F3.5, and a, 85-250/F5.
> >
> >
> > I have an OM4Ti for trial for 7 days and the metering is up to a stop
> > and a half over what my trusty and ever faithful OM1 meter says. To be
> > truthful, I have been comparing them indoors under artificial lighting.
> > It has been raining here in Australia (at least where I live) so I
> > cannot do the sunny 16 test.
> >
> > I have shot some Fuji Sensia 100 and 400, and it seems like there is
> > underexposure, though not by a stop and a half.
> >
> > Since I think the meters are different (is the OM-1 selenium and the
> > OM4Ti CdS ? - please correct me if I'm wrong ) maybe they are not
> > responding the same under artificial light? Although I remember testing
> > another OM4Ti (which ended up going back because the low voltage
> > sensing
> > circuitry seemed to lock the mirror up and shut the whole thing down at
> > least once per roll) and the OM1, and they were identical.
> >
> OM1 uses a Cds cell ,it's the OM2 whose cells are selenium.
>
> yves
>
>
The olympus mailinglist olympus@xxxxxxxxxx
To unsubscribe: mailto:olympus-request@xxxxxxxxxx?subject=unsubscribe
To contact the list admins: mailto:olympusadmin@xxxxxxxxxx?subject="Olympus
List Problem"
|