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Ray,
Thank you so much for the valuable inputs.
If I am not abusing I would have one more question: once the coma corrector is in place and threaded to the CCD, I can understand the collimation of the secundary, as I have the feedback provided by the defocused star on the computer's screen, but the primary, what would be the feedback ? Should I, by the chance, displace a collimated star in the center to the corners to check if the colimation remains at the 4 corners ?
Thanks again Ray
Marc:
Great suggestion, I will implement it.
Thank you very much,
Fernando
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