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Re: [ATM] zones 1

Don't understand the question.
The Foucault test is the comparison of the two sides of a zone to get them
to be the same level of gray for a reading of where that zone's relative ROC
is.
For the first timer, making a set of 5 masks, each one with one zone on it,
will allow for the easier reading of the zones rather than the all-in-one
mask that you normally see in the literature.
Bob May
bobmay@nethere.com
http://nav.to/bobmay
http://bobmay.astronomy.net

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