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Re: [OM] Light/Exposure Meters

Subject: Re: [OM] Light/Exposure Meters
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Fri, 10 Feb 2012 15:53:29 -0500
That's how John H does OM-1 conversions.  You'll find that and other 
solutions discussed here: <http://www.buhla.de/Foto/batt-adapt-US.pdf>

Chuck Norcutt


On 2/10/2012 10:37 AM, Chris Trask wrote:
>>

> I found a schematic this morning at:
>
> http://www.flickr.com/photos/93918130@N00/2609042974
>
> and then later found step-by-step instructions for doing a full-up
> conversion:
>
> http://www.biasedlogic.com/index.php/calibrating-gossen-lunasix-3-lunapro/
>
>  I should have thought of that conversion myself, which is simply
> adding a germanium diode (1N34, 1N60) or a Schottky barrier diode
> (1N5711) in series with the batteries to drop the voltage by 0.3V.
> That's a terribly simple change and essentially requires no
> calibration.
>
>
> Chris
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