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Re: [ATM] 8" F/4.2 progress

Hello Richard,
 
Interesting, do you have experience to share ?

Jean-Guy


----- Original Message ----- 
From: "Richard" <cnc@cncservo.co.uk>
To: "Mike Lockwood" <melockwo@uiuc.edu>
Cc: <atm@atmlist.net>
Sent: Thursday, October 27, 2005 12:07 PM
Subject: Re: [ATM] 8" F/4.2 progress


> Hi Mike,
> 
> Thursday, October 27, 2005, 4:32:16 PM, you wrote:
> 
> ML> Foucault probably gives the best balance of info of all three
> ML> qualities for a beginning mirror maker - at least that's what I think.
> 
> Others would argue that a simple mask and a digital camera or
> webcam, and Jim Burrows excellent Hartmann program is both easier
> and more accurate...
> 
> -- 
> 
> Best regards,
>  Richard in the UK
> 
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>
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