[LargeFormat] Lens cleaning advice required

[Les Newcomer]

I can almost think of two of them, one was ROR came in a spray bottle 
the other was a wet lens tissue  that was very good. It was made in 
Germany (maybe even West Germany, to give you an idea how long its 
been) but can't remember the name.  It was VERY good at removing oil.  
I heard once that Minolta uses a combination of ether and ethyl 
alcohol.  Bet they don't smoke much in that department.


Les

:
>
>> Hi Lads
>>
>> I picked up a fairly cheap (around $360 USD including caps) Rodenstock
>> Grandagon 90mm f6.8 from a local seller recently. Apart from some
>> delamination around one of the internal elements it seems to be in a
> fairly
>> reasonable condition. I've shot some film through it and it seems to 
>> be in
>> order.
>>
>> Homever there are some faint oil/grease marks on the glass that I'd 
>> like
> to
>> remove. I'm guessing they're probably fingerprint residues(?)
>>
>> Is there an easy way to remove this residue? I tried using an
> off-the-shelf
>> window cleaner but it left some streaking on the glass (removed with
>> water). Any advice on "LF lens cleaning best practice" would be 
>> greatly
>> appreciated.
>>
>> Best regards,
>>
>> Gavin
>>
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