[filmscanners] Re: HP PhotsSmart - questions

["lists" <lists@lazygranch.com>]

They advertise Windex with "Ammonia D". Of course it has ammonia. You
can find any  number of references that state ammonia destroys coatings:

http://www.opticallabproducts.com/07/young.php

I don't even clean my car  windows with windex. I use the same
electronics grade alcohol, especially if I'm going to apply Rainx.

Typical telescope cleaning instructions suggest alcohol then follow up
with acetone, but I never liked the ideaof using acetone.

http://www.astro-physics.com/index.htm?tech_support/refractors/care_refractor

Oh yeah, windex will make your CRT nice and shiny as it removes the
antireflective coating.


If you got the bucks, you can use grain alcohol, but that's such a
waste. Fry's carries the electronics grade alcohol. Nowintergreen oil or
other gunk.







wbgilloolyjr@charter.net wrote:

>You are mistaken.  I've communicated with the head of service for
>Schneider Optics and Windex diluted 50:50 with water is the #1 thing he
>recommends for cleaning lenses.
>
>Most lens cleaners are water bases, not alcohol based.
>
>Mr. Bill
>
>
>lists wrote:
>
>
>>Windex contains amonia which can etch coatings. Never use it on optics.
>>Electronics grade alcohol is generally accepted as best for optics. I
>>use cottonballs rather than cloth.
>>
>>
>
>
>
>
>

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