Separate, separate, separate... 100x.
CJG
On Wed, Nov 11, 2009 at 2:58 PM, Charles Geilfuss <
charles.geilfuss@xxxxxxxxx> wrote:
> John,
> Which elements in the 75-150 have the tendency to seperate. I have an
> original, bought-new-by-me 75-150 zoom that I bought about 30 years ago. So
> far so good, but I'd like to know what to look for.
>
> Charlie
>
> On Wed, Nov 11, 2009 at 2:47 PM, John Hermanson <omtech1@xxxxxxxxxxx>wrote:
>
>> 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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>
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