Re: Use of kimwipe to clean lenses


"Bryan Heit" <bjheit@xxxxxxxxxxxxxxxxx> wrote in message
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Kevin Cunningham wrote:
"Bryan Heit" <bjheit@xxxxxxxxxxxxxxxxx> wrote in message
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Craig wrote:

Hi,
Kimwipe is a lint-free paper. I am wondering whether Kimwipe can be
used to clean microscope lenses and to wipe out from oil lenses without
damaging.
Craig

I wouldn't trust it to not leave scratches. Lens paper isn't that
expensive; and it's designed specifically not to damage your lenses...

Bryan


Just a note. I've used Kimwipes for at least 11 years and absolutely no
scratches , approx. 10,000 'scopes.


For what use? We recently had to repair a rather expensive lens due to
damage associated with abrasion of the lens coating. One of the potential
causes of the damage, according to Zeiss, was use of non-lens paper for
cleaning the lens (kimwipes was listed as an example "bad" material).
Lower resolution lenses may not be effected by minor scratching of the
lens, but for those of us working with high NA lenses, near or at
resolution limits, even small scratches and abrasions can have notable
detrimental effects.

Bryan

I have never, ever seen or heard of damage occuring from the correct use of
Kimwipes. I work routinely on high end industrial and scientific
instruments and I just don't damage them. The core point is how to use the
Kimwipe or tissue successfully. The key issue is to have the wipe wet with
a usefull solvent. I use windex, heptane, alcohol and acetone depending on
what I think is on the lens. Cleaning dry will lead to the problems you
describe. I hold the solvents I have them in Menda bottles, these release
just a little bit of solvent everytime their pushed.

Zeiss uses cotton and wooden stick with ether and/or benzene. This is just
plain dangerous for a traveling tech. Ether and benzene are not your
friends. While the cotton and stick technique is safe, its slow as heck.
Olympus taught me the use of tissues. They use them and hold them with
tweezers, very effective.

Thanks,

Kevin Cunningham
SMS


.

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