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Is a Paracorr Overkill?

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#1 Oscar56

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Posted 12 August 2020 - 12:33 PM

The Paracorr was devised for faster dobs to ensure that stars to the outer perimeter of your view are pinpoint instead of seagull-like.  But does it add anything to lunar observations?



#2 Augustus

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Posted 12 August 2020 - 12:50 PM

It doesn't hurt.



#3 Tom Glenn

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Posted 12 August 2020 - 03:39 PM

Coma severely blurs the image on the periphery.  Although this can be most noticeable with stars, because they start to look like comets, coma distorts all images. On the Moon, this effectively destroys fine detail.  Even on an f/6 Newtonian, looking at the periphery of the field, detail is greatly reduced compared to the center of the field, unless you use a coma corrector.  But, if you don't care to look anywhere but the center of the field, and move the scope around to recenter, then you might not mind.  


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#4 Oscar56

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Posted 12 August 2020 - 05:19 PM

Thanks for the feedback.   On my next Lunar night I will test my Paracorr to determine if it makes any difference to my eye. 




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