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Re: [ATM] Dark finish for a telescope tube

To: Dominic-Luc Webb <dlwebb@canit.se>
Subject: Re: [ATM] Dark finish for a telescope tube
From: hermit <hermit@outofoptions.org>
Date: Fri, 29 Sep 2006 15:14:19 -0400
Cc: atm@atmlist.net
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Dominic-Luc Webb wrote:
> On Tue, 26 Sep 2006, hermit wrote:
>
>   
>> A densitometer is a highly precision instrument for measuring
>> reflectivity.  Phil Davis in his book does give a method for converting
>> a spot meter for use.  The densitometer uses a fairly bright light.
>>     
>
> Labs sometimes use common scanners for densitometry.
>
> Dominic-Luc Webb
>
>   
Tried that and failed miserably.  Could have been my scanner though. 
Any links?

Ken Lowther
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References:
- Re: [ATM] Dark finish for a telescope tube
  - From: Dominic-Luc Webb <dlwebb@canit.se>

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