A little bend or misalignment goes unnoticed at infinity, but racked
out, error is magnified. Previous shop may have fiddled with it enough
so it is correct now.
___________________________________
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
On 6/22/2011 9:09 AM, Sawyer, Edward wrote:
> Maybe something to do with the aperture ring becoming uncoupled from the
> rest of the lens when racked out to 1:2? With the double helicoid on the
> 90/2, sometimes I have heard of that happening when it's fully extended, the
> linkages get buggered and mis-aligned.
>
> Just a thought.
>
>
> On 6/22/11 6:16 AM, "olympus-request@xxxxxxxxxxxxxxxxx"
> <olympus-request@xxxxxxxxxxxxxxxxx> wrote:
>
>> Re: [OM] m43 adapter
>> To: olympus@xxxxxxxxxxxxxxxxx
>> Message-ID:<4E00FC44.50608@xxxxxxxxxxx>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> Thanks for the input. Yes, I'd guess that Olympus version of the
>> adapter would have steel front mount, might as well be from OM-1.
>>
>> Why I asked: a new customer is using his 90mm f2 Zuiko on an m43
>> adapter. He says that when the lens is focused all the way out to 1:2,
>> he stops the lens down to any small aperture and then hears a "click"
>> inside the lens. When the lens is focused back, the diaphragm ring
>> turns, but stop down button / tab on back of lens are no longer linked
>> to the diaphragm. Customer is in France, lens has been to a repair shop
>> in Italy several times, now I have it. I wanted to see if m43 adapter
>> could be linked to this problem in any way, but all it's doing is
>> holding the lens stopped down.
>
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