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[OM] Fw: Re: OM4 metering problem (?)

Subject: [OM] Fw: Re: OM4 metering problem (?)
From: "John Hermanson" <omtech@xxxxxxxxx>
Date: Mon, 31 Oct 2005 11:05:39 -0500


> I've seen many 4s and 4Ts where the Auto / manual switch is dry.  Even 
> when set to manual, camera defaults to auto.  That could be your problem. 
> Set it to manual  1 second and point camera at a bright light, no lens 
> cap, lens wide open.  Fire shutter and see if shutter stays open for the 
> set time.  If not, a CLA would fix it up.
>
> John Hermanson
> Camtech Photo Services, Inc.
> 21 South Lane, Huntington, NY 11743
> 631-424-2121  |  omtech@xxxxxxxxx
>              www.zuiko.com
> Factory Trained OM Service since 1977
> __________________________________
> ----- Original Message ----- 
> From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxx>
> To: <olympus@xxxxxxxxxx>
> Sent: Friday, October 28, 2005 3:02 PM
> Subject: [OM] Re: OM4 metering problem (?)
>
>
>> Sounds like your ASA and/or exposure compensation dials are dirty.  A
>> CLA should fix them up.  For a temporary fix try rotating them back and
>> forth rapidly NUMEROUS times to scrub the dirt/corrosion off the brushes
>> and contacts.  Check again against your mother's OM-1 with all things
>> equal.  For framing try a blank wall or clear sky to be sure the cameras
>> are seeing exactly the same thing.  You might also want to do this ahead
>> of your cleaning action just so you have something to compare against.
>> ie; did you change anything by scrubbing the dials.  Also try at
>> different ASA settings to see if the problem has been resolved or maybe
>> just moved to another setting (dirt slid around somewhere else)
>>
>> If this works it may just be temporary and the problem may return.  It
>> really should be CLA'd eventually.  You'll be happier.
>>
>> Chuck Norcutt
>>
>> Guillaume Remy wrote:
>>> Hello all,
>>>
>>> Last summer, I shot a rol of 100 ASA dia through my OM4. Photos came 
>>> almost all out underexposed.
>>> Not willing to see any problem in the camera, I settled for the 
>>> "difficult lighting conditions" in
>>> Scotland.
>>>
>>> Next to that, I shot a 800 ASA negative film through it. No problem. 
>>> Photos were correctly
>>> exposed.
>>>
>>> Now, last week I used a 100 ASA dia film again. The photos came almost 
>>> black out.
>>>
>>> A comparison with my mother's OM1 showed a noticeable difference between 
>>> her OM and mine. Mine
>>> indicated a faster shutter speed (same lens, same apperture, same 
>>> framing), and hers was loaded
>>> with 200 ASA... what's happening in here ?
>>>
>>> Will a CLA work this out ?
>>>
>>> Sorry for grammatical disasters (I'm not a native english speaker), and 
>>> for the coming delay in my
>>> answers (I'm on digest mode),
>>> Guillaume
>>>
>>>
>>>
>>>
>>>
>>>
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>>
>>
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> 


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