[Leica] Thumbs down for Lens Pen! ----tried and proven method

[leicamshooter at yahoo.com (G Medina)]

Ok. I've got good result for anyone still following
this thread, but it takes patience and attention to
detail. Windex seems to work fine. Methyl alcohol is
recommended by Leica, but not as easy to obtain.  But
it must be applied with 100% cotton Q tips, working
your way down from top to bottom, 1/3 of the way at a
time, followed by a wipe with a very clean microfibre
cloth immediately after. I've got one by clearsight. A
hot breath helps with any residual streaks.. Keep
doing this all the way down. Do your best to get the
edges of the glass where small lint/dust can
accumulate.

Using a continuous light source from the rear of the
lens is the only way to judge how effective your
efforts are. Otherwise, just blow hot air on it and
wipe. Lens looks clear, and NO SLEEP IS LOST!

Thank you everyone for your great advise and help,
G Medina



--- Bill Smith <wrs111445@yahoo.com> wrote:

> Awhile back here it was recommended to use the
> following method:
>    
>   1.) use bulb blower.
>    
>   2.) one application of pure, lab grade Acetone on
> a new Q-tip one one end and dry w/ the 
>       other end.
>    
>   3.) repeat #2 above w/ new Q-tip.
>    
>   4.) one application of a "wetting agent" solution
> of one qt. bottle of distilled water/ two drops 
>        of a dishwashing detergent on a new Q-tip and
> dry w/ the other end..
>    
>   5.) repeat #4 above w/ a new Q-tip.
>    
>   I have used this method over and over on my lenses
> when they get dirty or have fingerprints and it
> works like a champ.
>    
>   
> 
> G Hopkinson <hoppyman@bigpond.net.au> wrote:
>   Very likely you may not identify any loss of
> quality at all in practical use from what you are
> describing. For cleaning fingermarks,
> I use the Zeiss optical cleaning mixture with
> microfibre cloths. I find it to be excellent. You
> can get Zeiss moistened wipes in
> sachets, too. I think someone may have mentioned
> them. I bought a couple of hundred off the bay a
> while back. They are really easy
> to carry and effective to use. While you are being
> careful, be sure to use a clean soft brush to gently
> remove any dust or grit
> before you wipe with anything. Plenty of people on
> the list will tell you that modern Leica lens
> coatings are tough and I have no
> doubt that is true. I am always careful cleaning,
> maybe more than I need to be, but there is certainly
> no harm in it. I have never
> scratched any lens over quite a few years of camera
> handling.
> 
> Cheers
> Geoff 
> 
> -----Original Message-----
> Subject: Re: [Leica] Thumbs down for Lens Pen!
> 
> Ok, upon close inspection with a pen light through
> the front of the lens, I still have some oily
> residue left over. Looking at the
> lens directly on held to a light source like a
> ceiling lamp, the lens looks very clear all the way
> through, but with a pen light a
> see some slight leftover stuff, including dust in my
> lens. 
> 
> I don't recommend anyone use a pen light with their
> precious lenses if they're in anyway obsessive. You
> won't like what you see! Am
> I being obssesive about my lens, or should I order
> some ROR and a new microfibre cloth from BH photo?
> Will it affect picture quality
> is what I'm asking?
> 
> Thanks,
> G Medina
> 
> 
> --- G Medina wrote:
> 
> > I had a oily fingerprint in the rear element of my
> 28mm Contax G2 
> > lens. A microfibre cloth didn't work.
> > Breathing on it didn't work either. Distilled
> water just moved the 
> > print around. I ordered the lens pen, and it also
> just shifted the oil 
> > around. So I researched several days and decided
> to give windex and a 
> > soft nose tissue a try. Believe it or not, it
> worked the best! I'm 
> > being very careful, so I've waited till morning to
> evaluate the 
> > result, but my result looked good last night.
> > 
> > I'd be afraid to use this on a single coated 50's
> lens, but it seems 
> > to work nice on modern coated lenses.
> > 
> > Anyone use Windex before?
> > 
> > Thanks,
> > G Medina
> > 
> > 
> > 
> >
>
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> 
> 
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