Re: [ATM] first ronchi images,,,, ouch

[Jim Burrows <burrjaw@earthlink.net>]

At 2006-03-09 03:14 +0000, Charles wrote:

>So I decided to put it on the ronchi and
>take a few photos,,,, well here is the link,  please try to be kind.  I do
>want feed back though as I believe I have a turned down edge, and maybe
>more....  any advise you can give is allways gratefull.
>http://www.geocities.com/quantemlp/page4.html

In muh opinion, as our commander-in-chief sez, the funny little bulges on 
the left side of the in-focus images are from the grating, not on the 
mirror.  But I don't have the years of Ronchi experience that Mel Bartels 
has, indeed none <g>.  So I'd suggest hacking up a mask, get behind the 
knife edge with pencil and note paper, and do some Foucault tests to see 
what is REALLY going on with the mirror profile.

         -- Jim Burrows
         -- mailto://burrjaw@earthlink.net
         -- http://home.earthlink.net/~burrjaw
         -- Seattle N47.4723 W122.3662 (WGS84) 

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