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| subject: | Re: ATM How Good Does a Diagonal Need to Be? |
From: lifedata{at}vol.com
To:
Reply-To: lifedata{at}vol.com
>The Quality of the diagonal, if it is located at the objective(
>mirror), needs to be the 'same' as the main mirror tolerance. This
>tolerance is reduced to the same as the focus tolerance at focal plane.
It seems to me that a given surface error near the focal plane would effect
a greater "percentage" of the total image, therefore have a
greater effect. What's wrong with this logic?
Jim L
--- BBBS/NT v4.00 MP
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