Chuck,
my test-roll told me that the meter is within tolerance - at least when
shooting C-41 B&W film and I also read somewhere else that the 640 alkaline
batteries works well in the ECRs.
Thanks for the reminder about using the hearing aid batteries. I know you
can pad the battery compartment and fit these batteries in there and I may
try that solution out as well.
I tend to stay away from air cells since as soon as you start using them
they start degrading and 4-5 months in they are more or less depleated -
regardless if you use them or not.
/Rich
On 11/6/06, Chuck Norcutt <chucknorcutt@xxxxxxxxxxx> wrote:
>
> Eeegad! I just took a peek. $10 for 2 and they're 1.5 volt alkaline
> which is pretty far off the 1.35 volt spec for mercury. And since
> they're alkaline the voltage level is not stable as you would get with
> either mercury or silver oxide. You could have a better battery with a
> silver oxide cell and a plastic spacer in the battery compartment. Have
> you ever considered using cheap hearing aid batteries? They're zinc air
> cells and produce 1.4 volts.
>
> Chuck Norcutt
>
> R S wrote:
>
> > John, thanks. The A640PX is a 1.5v mercury replacement battery
> (available
> > from, amongst other places, www.photobattery.com). It may well be that
> it's
> > a bit off the original Mercury battery specs but with C-41 or b&w film
> there
> > is enough latitude to not notice.
> >
> > The ECR I bought had some 'stuff' on the battery contacts as well but a
> few
> > quick sweeps with vinegar (my favorite solution for reviving battery
> > contacts) and it worked like a charm.
> >
> > /Rich
> >
> >
> > On 11/6/06, John Hermanson <omtech1@xxxxxxxxxxx> wrote:
> >
> >>
> >>Very nice tones. I'm curious what battery setup you are using. RM640
> >>(?) were notoriously leaky (and of course being mercury cells, now
> >>discontinued.)
> >>
> >>When we (Olympus) were still doing factory repairs on the EC line, I
> >>remember the battery contacts falling out of the bottom of cameras
> >>because the battery leakage had eaten through the solder connection.
> >>
> >>___________________________________
> >>John Hermanson
> >>Camtech Photo Services, Inc.
> >>21 South Lane, Huntington NY 11743
> >>631-424-2121 | Olympus OM Service since 1977
> >>http://www.zuiko.com | omtech1 AT verizon.net
> >>
> >
> >
> >
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