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Re: ATM Your comments on TUE and TDE, revisited
I've seen the S shape on fully polished out mirrors. I've even got one
example of the problem with a mirror that started out fully polished but
spherical and the guy tried to parabolize it but got the problem instead.
Since the mirror is a 4.25" one, it's kind of hard to see what he's doing
wrong as the mirror is fully enclosed by his hand.
Bob May
http://nav.to/bobmay
bobmay@nethere.com