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[OM] Re: A screw-up that wasn't

Subject: [OM] Re: A screw-up that wasn't
From: Moose <olymoose@xxxxxxxxx>
Date: Mon, 05 Mar 2007 22:36:18 -0800
Walt Wayman wrote:
> So, are you saying lithiums have the same sort of declining voltage output as 
> alkalines when put in use? 
Yes.
> Doesn't seem to bother the Leica, since they're recommended. Of course, with 
> it, the battery only runs the meter and triggers the flash; no electronically 
> controlled shutter and such.
>
> But wait! The Leica manual says "The Leica M6 TTL requires two 1.5 volt 
> silver-oxide button cells or one 3 volt lithium cell for the exposure meter 
> and to trigger connected flash units."
>
> If it, like the OMs, requires silver-oxide batteries, but also recommends a 
> lithium, what's the difference? 
Electronic shutter. True for all but the OM-1(n) and OM-3(Ti). Recall 
that your questions was "Anybody know any reason they wouldn't also work 
in the OM-4 and OM-4Ti cameras?"

The electronic shutters require high currents for short periods. Any 
battery which has a  significant voltage drop under those conditions is 
trouble. One that also has a nice slow drop off of voltage with age and 
use can cause apparently intermittent symptoms that lead to all sorts of 
trouble when misdiagnosed,a s well as possible madness for the user.

You have had enough trouble in your life. Keep the lithiums out of the 
OM-2 and 4 and double digit series bodies except for emergencies, then 
replace as soon as possible.

Moose

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