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Re: [OM] Pen FT light meter callibration?

Subject: Re: [OM] Pen FT light meter callibration?
From: John Hermanson <omtech1@xxxxxxxxxxx>
Date: Mon, 03 Aug 2009 11:10:23 -0400
You could also remove the resistor between board and galvanometer and 
replace with the appropriate potentiometer.
___________________________________
John Hermanson  |   CPS, Inc.
21 South Ln., Huntington NY 11743
631-424-2121  |  www.zuiko.com
Olympus OM Service since 1977
Gallery: www.zuiko.com/album/index.html


John Hermanson wrote:
> Some FT boards have a trimmer pot, others are adjusted by:
> 
> 1) note the iso you are shooting at, also note meter error.
> 2) lift and turn shutter speed / iso knob until meter reading is correct.
> 3) after peeling leather up on iso knob side, loosen top screw most of 
> the way. Loosen bottom screw a little.
> 4) GENTLY lift top edge of shutter speed dial / iso knob plate assembly 
> so it separates from body and inner gear which connects it to the meter. 
>   While knob is separated from this gear, Gently lift and turn iso back 
> to the original setting you were using.
> 6) re-seat shutter speed / iso knob assembly, gently rock knob back and 
> forth to be sure gear has re-seated.
> 
> ___________________________________
> John Hermanson  |   CPS, Inc.
> 21 South Ln., Huntington NY 11743
> 631-424-2121  |  www.zuiko.com
> Olympus OM Service since 1977
> Gallery: www.zuiko.com/album/index.html
> 
> 
> iwert bernakiewicz wrote:
>> hello,
>>
>> i there anyone on the list who can "enlighten" me on the callibration
>> of a pen FT light meter?
>>
>> The meter seems to work well but is 2 stops off...
>>
>> Best regards,
>>
>> Iwert.
-- 
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