Re: [ATM] Help with star test interpretation - TUE,SA or something else?

["Bob May" <bobmay@nethere.com>]

Like doing the Ronchi test at the ROC of a mirror, the test does have it's
problems.  You should be able to see the little stuff like a turned edge and
other higher frequency errors more than whether the telescope is only 70% of
the right shape although looking at straight lines is easier than the curved
ones of the ROC version of the test where you have to judge the curvature of
those lines.
Bob May
bobmay@nethere.com
http://nav.to/bobmay
http://bobmay.astronomy.net

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