So , in your expert opinion ( that you are more than welcome to share) what's so ( in your words) , ' Absolutely Objectionable' , about this shot ?
Taken with my terrible for luna photography 127mm Istar Achromat ?
This was taken eyepiece projection , 5mm TV Radian giving 200x , not quite dark , using my HTC one smart phone . Here it is .
Take your best shot old mate .
Zero processing , just a raw shot cropped a little for the page .
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On the Copernicus shot , just stunning ! awesome shot . Reminds me why I am a Luna , Planetary observer , so very well done .
But I need to ask how much computer enhancements have been done to acheave this beautiful shot ?
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Thanks and keep em coming .
Brian.
Quote:
Originally Posted by Satchmo
At about 20X - X40 prime focus magnification with an Achro - which these shots represent, CA will not be noticeable . At X400, using eyepiece projection for a descent close up shot the CA in these Achro refractors will be absolutely objectionable in the pictures - even for visual observing pretty useless....
I am not sure exactly what you are proving in these photos - the subtext being that somehow CA in achros is an overrated criticism ?
Have attached a picture of Copernicus using frame stacking , by Anthony Wesley using a basic 10" F6 reflector in 2005 - just to put some perspective on this !
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