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[ATM] Star testing with a ronchi test to quantify a sphericalaberration

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Subject: [ATM] Star testing with a ronchi test to quantify a sphericalaberration
From: Raphaël GUINAMARD <rguinamard@infonie.fr>
Date: Thu, 23 Dec 2004 22:00:11 +0100
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I also see on star test a small amount of spherical aberation (I think lambda/5 or something like that)
When I put a ronchi grating, the lines seems straight with no deformation (exept the TDE)
Is my 24" f/3.3 too fast for detecting the spherical aberation with the ronchi grating?
Thanks,
Raphaël Guinamard
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