The OM 65-200 f4 zoom had the same problem. I have one of them my father
bought new when I was a kid. I used to do a lot of photography with it
when I was younger, but its worthless now. I've seen several others in the
last couple years for sale, and all had the same issue. Sucks, because it
was a pretty sharp lens for a 1980's zoom.
I shot these with it when I was 15. 23 years ago!
http://chriscrawfordphoto.com/chris-details.php?product=866
http://chriscrawfordphoto.com/chris-details.php?product=932
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Chris Crawford
Fine Art Photography
Fort Wayne, Indiana
260-437-8990
http://www.chriscrawfordphoto.com My portfolio
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On 6/26/14 2:57 AM, "Andrew Fildes" <afildes@xxxxxxxxxxxxx> wrote:
>Yes - I've had this. The fogging is over the outer surface of the inner
>lens - the side facing the internal space. Sometimes the element facing
>it is also affected. I've had both faces repolished on one pair by a
>Sydney specialist - resurface and single coating. He charged by the
>surface on the demounted lenses. It was not necessary to separate the
>tiny rear doublet.
>And don't ask - he's retired. I found him by asking a television station
>serviceperson who had to deal with a lot of damaged lenses.
>I don't know what causes it in this specific way on this specific lens
>but it's quite unusual. An even frost etching over the whole surface,
>nothing like fungus.
>Andrew Fildes
>afildes@xxxxxxxxxxxxx
>
>Author/Publisher:
>The SLR Compendium,The TLR Compendium
>http://www.soultheft.com/storehouse_photopublish/
>
>
>
>On 26/06/2014, at 9:44 AM, John Hermanson wrote:
>
>> Fogging (like white frosted) is all over outside of element. Sad, I
>>have a super clean 8mm with this defect.
>>
>> ___________________________________
>> John Hermanson | CPS, Inc.
>> 21 South Ln., Huntington NY 11743
>> www.zuiko.com | omtech1@xxxxxxxxxxx
>> Olympus OM Service since 1977
>>
>>
>> On 6/25/2014 11:19 AM, Sawyer, Edward wrote:
>>> The only real possible solution for this is extract the inner element
>>>pair
>>> (presuming it's a cemented pair), de-cement them, and re-cement them
>>>with
>>> new cement. Edmund Optics carries the tools and supplies you would need
>>> for this. It's not a trivial piece of work, and would only be worth
>>>trying
>>> on an otherwise useless lens.
>>>
>>> The above assumes the fogging is in the cementing, which is probable.
>>> However, some types of glass can chemically change with time,
>>>effectively
>>> dissipating some of their materials to the surface of the glass,
>>>resulting
>>> in permanent haze. Not sure if the OM fisheyes are of that nature or if
>>> it's cemented elements that are to blame.
>>>
>>> The mamiya RZ67 75mm shift/SB lenses have a common ailment like this
>>>too,
>>> in a rear cemented pair.
>>>
>>> -Ed
>>>
>>>
>>> On 6/24/14 6:16 AM, "olympus-request@xxxxxxxxxxxxxxxxx"
>>> <olympus-request@xxxxxxxxxxxxxxxxx> wrote:
>>>
>>>> [OM] 8mm OM analogue 2.8 OM fisheye users please contact me
>>>> off-list
>>>
>> --
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>
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