Thanks John.
Charlie
On Thu, Nov 12, 2009 at 9:14 AM, John Hermanson <omtech1@xxxxxxxxxxx> wrote:
> When you look through the lens, try to focus midway, you may see what
> looks like a hair laying across a lens or it may look like a bubble
> (where the outer circumference has completely separated and the center
> is still glued). You don't even have to check that. If you use the
> lens and find that it's difficult to focus on ANYTHING, the element is
> separated.
> ___________________________________
> 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
>
>
> Charles Geilfuss 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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