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Re: [ATM] undercorrecting?



Hi Mel, totally agree with that.

Or try the following simple experiment : direct the air flow from a small fan
on the mirror while observing with the Foucault test.

Jean Guy

  Most of the image degradation is
> due to the interaction of the mirror with the air of cooler temperature and
> not due to change in shape of the mirror.  You can test for this by turning
> off/on a fan aimed at the mirror.
> 
> Mel Bartels
> 
> 
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