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Old 02-06-2009, 11:31 AM
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Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Definitely out (way out!) of focus.
Geoff
BTW, you absolutely can't get CA from a Newt at prime focus without violating the laws of physics, no matter how poor the mirrors may be. Any CA in a Newt can only come from the refractive elements (eg eyepieces, coma corrector etc) in the optical path.
Geoff

Last edited by Geoff45; 02-06-2009 at 06:03 PM.
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