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Re: [OM] Separated Zuiko 250/2, was: Inside the Zuiko 300mm F4.5

Subject: Re: [OM] Separated Zuiko 250/2, was: Inside the Zuiko 300mm F4.5
From: John Hermanson <omtech1@xxxxxxxxxxx>
Date: Wed, 11 Nov 2009 14:47:44 -0500
A lot of 75-150 have a separated element.  65-200 / 50-250 have frosted
element in the back. One of the lenses in the Olympus collection was a 
65-200, oh cool, perfect on the outside, DOH frosted element.
___________________________________
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


Wayne Harridge wrote:
> 
> 
> 
>> Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>> 
>> Just wait a while.  More old age will be automatically applied. 
>> However, it might not help to repair the situation.
>> 
> 
> I don't think it would be just a case of "old age", I've got a number
> of lenses built well before any zuiko 250/2 which aren't showing
> separation.  Something like extreme heating/cooling may have caused
> the problem, so continuing with similar treatment may actually cause
> the elements to separate completely.
> 
> ...Wayne
> 
> Wayne Harridge
> 
> http://lrh.structuregraphs.com
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