Thanks, Dave, for your welcomed input! Question: do you not leave cotton
lint over the optical glass by using cotton balls? Just wondering....
Thanks, Ettore


----- Original Message -----
Sent: Friday, May 25, 2001 6:13 PM
Subject: [M]: Re: Optics Cleaning


> Ettore,
>
> First, never use plain water - always distilled.
>
> This has been my experience when cleaning the corrector plate:
>
> Using cotton swabs and -
> Distilled water and dish soap left nasty streaking.
> Distilled water and Windex left nasty streaking.
> Distilled water and alcohol also left streaking.
>
> The only thing that worked for me was the plain 90% alcohol and generous
> amounts of cotton swabs, cleaning small areas at a time. That process not
> only didn't leave streaks, it removed the streaks left by the other
methods.
>
> I started by gently brushing the corrector plate with a camel hair brush.
> Then I started with the alcohol, wetting a swab and very *gently* rubbing
on
> one section, using a new swab to dab off the excess instead of letting it
> all evaporate. Discarding both swabs, I started the process again with
new
> swabs in the next area. I repeated the process until the entire corrector
> plate was done.
>
> I needed to clean mine after I asked my young son to check for frost on
the
> corrector plate of my 10" LX200 one night during the winter. Instead of
> using the red flashlight I gave him for the task, he used his bare fingers
> which left fingerprints smeared over a section of the plate. If you are
> concerned about dust, generally a brushing with a good quality camel hair
> brush is sufficient.
>
> When cleaning with liquids, make sure you don't flood the surface and have
> the OTA pointing downward so as not to get any liquid behind the plate.
>
> Dave
>
>
>
>
>
> >What's the consensus of the List about the best way to clean the
corrector
> plate and/or the eyepieces?
> >I read in the Archives to use:
> >Water with drops of dish soap.... OR Distilled water with some
Windex....
> OR a solution of Alcohol and water.
> >And the LX200 manual says to use Isopropyl Alcohol 90%.
>
> >Use camel air brush... OR cotton balls... OR facial tissues?
>
> >I believe it is wise to clean al little as possible and imperative not to
> scratch the surfaces while trying to clean, but sometime it is >simply
> needed. I'd appreciate the feedback so I can make a good choice. Thanks,
> Ettore
>
>
>

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