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[OM] Re: Fungus

Subject: [OM] Re: Fungus
From: John Hermanson <omtech1@xxxxxxxxxxx>
Date: Wed, 11 Jan 2006 08:27:07 -0500
If the 50 is a new style, with front elements all incorporated in one 
assembly with the filter ring (2 types), you'll have access to only 2 
lens surfaces, hopefully fungus has not crept inside. 28 and 135 are 
pretty straightforward.
If the 35-105 just involves front and rear elements, then it's not too 
bad. With the rear element, there are no spanner slots visible, so 
you'll have to disassemble the mount area just to expose enough of the 
tube to get a grip.
(I have new rare rear elements for the 35-105 ((ZJ166600))) $28.

___________________________________
John Hermanson
Camtech Photo Services, Inc.
21 South Lane, Huntington NY 11743
631-424-2121 | Olympus OM Service since 1977
www.zuiko.com  |  omtech1@xxxxxxxxxxxxxxx
Remove 'spam' when writing

> On 1/10/06, Simon Worby <simon@xxxxxxxxxxxx> wrote:
> 
>>John Hermanson wrote:
>>
>>
>>>Sometimes it can be cleaned out, [...]
>>
>>I have "inherited" 4 lenses, all with fungus:
>>
>>50      1.8      major fungus damage
>>28      2.8      major fungus damage
>>135     2.8      minor damage except on rear element which is bad
>>35-105  3.5~4.5  front and rear elements; rest difficult to guess but
>>looks okay
>>
>>Clearly the 28 and 50 are beyond economical repair. But I'm not sure
>>about the 135 and the 35-105.
>>
>>I bought a set of tools and I've had the 50 apart as a guinea pig. The
>>aperture was also sluggish. It's even back together now, but the fungus
>>on the front element (group) in particular appears to go between some of
>>the lenses and is not accessible. But it's a great improvement, cleaned
>>just with alcohol.
>>
>>I'm considering tackling the others, based on the fact that I have
>>little to lose. But the 135 looks a little more difficult, and getting
>>the rear element out looks like it's going to be tricky.
>>
>>If I'm going to try, what is the best solution to use to try to clean
>>the lenses up with (i.e. to get rid of the fungus)?
>>
>>Also, bearing in mind that the 35-105 would be worth more than a
>>professional clean will cost (assuming it comes out right), is it worth
>>sending it off?
>>
>>Thanks,
>>
>>Simon
> 


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