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[OM] Re: Yellowed 24mm f/2.0 MC

Subject: [OM] Re: Yellowed 24mm f/2.0 MC
From: Dawid Loubser <dawidl@xxxxxxxxxxx>
Date: Wed, 1 Oct 2008 16:04:11 +0200
It sure doesn't smell of nicotine, and looks cosmetically good.
Oh well, I will try to clean ti well once with lens cleaning fluid,
(though a lens cleaning microfibre cloth didn't do anything) but  
otherwise
I guess it's also off to John Hermansson when I send my kit to get  
CLA'd,
since my OM-1n body is nowhere near as smooth as it ought to be.

Since we are still busy setting up darkroom, I can live with this  
delay, otherwise
it's be very frustrating to not be able to use the new toys :-)

I must say, the 24/2.0 is a magnificently built lens - what a  
beauty! ...and
so compact for what it does. It's a pity this one is yellow, it also  
appears
darker than what it should be, testing indicates almost a stop darker.

I'll let you know, will try some intense sun therapy in anyway, who  
knows.

D.

On 01 Oct 2008, at 3:52 PM, Timpe, Jim wrote:

>
> First time I've heard of yellowing in anything but the 55/1.2.  Don't
> think sun exposure would help that lens, as the cause must be  
> something
> other than radioactive glass.  Nicotine stains?
>
> -----Original Message-----
> From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On
> Behalf Of Dawid Loubser
> Sent: Wednesday, October 01, 2008 12:31 AM
> To: olympus@xxxxxxxxxx
> Subject: [OM] Yellowed 24mm f/2.0 MC
>
>
>
> Hi All,
>
> I purchased a 24mm f/2.0 MC (SN# 103xxx) on Ebay, which arrived today.
> The lens looks fantastic, operates
> smoothly, etc - but there is one problem: The lens has a substantial
> yellow cast - when you look through
> the viewfinder, it looks like a pretty strong warm-up filter has been
> fitted.
>
> I plan to shoot exclusively B&W with this setup (I use my Mamiya and
> Linhof for colour landscapes) but
> I was wondering, is this a similar problem to the rare-earth elements
> that yellow in the notorious early
> copies of the 55mm f/1.2 lens? Did they use similar (rare-earth)
> elements in the early 24/2.0 MC lenses?
>
> I have heard that placing a yellowed 55/1.2 in direct sunlight could
> clear it up, is it worth trying with
> the 24mm, or is this some other problem you guys know about?
>
> thanks for the expertise :-) I could live with this lens like this,
> but obviously would prefer a slightly
> less warm outlook on life, if possible.
>
> regards,
> Dawid
>
>
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