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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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