Archived posting to the Leica Users Group, 2009/02/08

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Subject: [Leica] Question about Lens CLA/Cleaning
From: luisripoll at telefonica.net (Lluis Ripoll)
Date: Sun Feb 8 10:08:46 2009
References: <8975B6F9-E5B0-42B6-9884-330819820581@telefonica.net> <36172e5a0902052252p4ed8a6b5rda87626f055e54ee@mail.gmail.com>

To Geoff, Frank

Thanks for your comments, I've talk again with the workshop and it was  
a misunderstanding. They use a special gasoline but only to clean  
metal parts before to re-lubricated, never on the glass!

Saludos cordiales
Lluis


El 06/02/2009, a las 7:52, Geoff Hopkinson escribi?:

> Lluis I would not let anyone put my lens elements in petrol.   Zeiss  
> and
> Leica use their own cleaning solutions which I think are based on  
> isopropyl
> alcohol.  It is very pure and leaves no residue behind. Petrol could  
> be used
> to degrease metal parts before they are re-lubricated. Ultrasonic  
> baths can
> also be used to clean optics. Petrol is suitable for cleaning your  
> bicycle
> chain or running your car engine.
>
> 2009/2/6 Lluis Ripoll <luisripoll@telefonica.net>
>
>>
>> I've purchased an old Zeiss Jena Sonnar 2/85 the focusing was very  
>> tight
>> and I've gave it to a local workshop to be CLA, the glass is in  
>> perfect
>> condition but dusty. The man of the workshop will do again the  
>> correct
>> lubrication and he said me too that at the same time he will clean  
>> the dust,
>> soaped on petrol, I was very surprised and he said me that this is
>> absolutely usual.
>>
>> Can someone confirm me if this can not affect the fluorite coating  
>> of the
>> Zeiss lenses or be maybe damaged?
>>
>> Thank you very much!
>>
>> Saludos cordiales
>> Lluis
>>
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>>
>
>
>
> -- 
> Cheers
> Geoff
> 'Licence to Chill'
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information



Replies: Reply from hopsternew at gmail.com (Geoff Hopkinson) ([Leica] Question about Lens CLA/Cleaning)
In reply to: Message from luisripoll at telefonica.net (Lluis Ripoll) ([Leica] Question about Lens CLA/Cleaning)
Message from hopsternew at gmail.com (Geoff Hopkinson) ([Leica] Question about Lens CLA/Cleaning)