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RE: [ATM] Another Astigmatism question, but at the sphere stage

At 18:31 8/29/05, Jerry wrote:
>. These irregularities from
>local figuring have to be small in magnitude and behind the diagonal for the
>most part but that is astigmatism.
>

You guys seem to be using the word astigmatism as a synonym for 
general asymmetric or even localized defects. That's a really 
unfortunate amateur habit.

Mike Peck


_________________

Michael Peck
email mpeck1@ix.netcom.com
Wildlife photoblog! http://wildlife-pix.com
Amateur telescope making http://home.earthlink.net/~mlpeck54/astro/astro.html 

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