The aperture lever is fixed with two screws and the holes are elliptical
shape so that you can loose them and make some adjustment. The one on the
tokina has quite a large range (~1 stop?). I believe Zuiko has less (just
looking at the Zuiko 135/3.5). If your exposure error is more than that
there could be other problem.
C.H.Ling
----- Original Message -----
From: "Gérard Meunier" <gmeunier1@xxxxxxx>
>
>
> On Nov 4, 2004, at 12:15 AM, C.H.Ling wrote:
>
>>
>> If you have problem in manual mode, most likely the aperture coupling
>> lever
>> has problem. I had a tokina 28-70 that off by 2/3 stop, I corrected it
>> by
>> adjusting the position of the aperture coupling lever.
>
> How do you do that?
>
> Thanks.
>
>>
>> C.H.Ling
>>
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