Re: [ATM] Reducing the outer zone in figuring

["Arjan te Marvelde" <arjan.te.marvelde@hetnet.nl>]

Mike,

Inside COC. I've got some more pics put up now, after another evening of
fruitless work.

Arjan

----- Original Message ----- 
From: "Michael Lindner" <mikell@optonline.net>
To: "Arjan te Marvelde" <arjan.te.marvelde@hetnet.nl>
Cc: <atm@atmlist.net>; <melockwo@uiuc.edu>
Sent: Friday, 11 May, 2007 22:19
Subject: Re: [ATM] Reducing the outer zone in figuring


> Arjan te Marvelde wrote:
> > Well, I managed to correct the high edge ... but now it is rolled down.
> > See http://home.hetnet.nl/~artm/atm/travel2/figure.html
> >
> > It's 250mm F/6.3, and should ideally become a paraboloid.
> > I guess I'll have to bring down 70-90% zone.
>
> Sorry to be jumping into the middle of the discussion - are these
> ronchigrams taken inside or outside of CoC?
>
> -- 
> Michael Lindner
> http://www.starastronomy.org *** http://home.att.net/~mikel
> http://www.atmsite.org *** http://www.atmlist.net

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