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Re: [ATM] Testing of polished surface

To: "atml" <atm@atmlist.net>
Subject: Re: [ATM] Testing of polished surface
From: "Bob May" <bobmay@nethere.com>
Date: Mon, 7 Jun 2004 10:17:14 -0700
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Check to see if the spots move about with a wipe and, if so, the spots are
dust.
I tend to use a 10 power eye loupe (cheap 1" fl lens if you want) to check
the surface of a glass and a strong light like the sun on the surface near
where you are looking.
Bob May
http://nav.to/bobmay
bobmay@nethere.com
NEW! http://bobmay.astronomy.net


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References:
- [ATM] Testing of polished surface
  - From: Chris Plicht <cap@plicht.de>

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