[ATM] Second Thoughts on Mirror Support

[djd521 at comcast.net (Don D'Egidio)]

Dale,

It was the Foucault test done by our club guru. The reason the mirror had to be removed because it tested 1/2.51 wave. The mirror went back to Discovery and the replacement tested 1/4.85 wave. Both mirrors were very smooth. Our guru said it was up there with the smoothest he has seen, and he's tested many mirrors for the club.

Don

----- Original Message ----- 
From: "Dale Eason" <atmpob@yahoo.com>
To: "The Amateur Telescope Makers List" <atm@atmlist.net>
Sent: Monday, February 02, 2004 23:01
Subject: Re: [ATM] Second Thoughts on Mirror Support


> Don,
> How did you do the testing?
> 
> Dale Eason