Quote:
Originally Posted by Peter Ward
Proof?? the M104 image I took some years ago with great optics in superb seeing. The link is here
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That is truly an excellent image Peter... I think the point that you have just established is that it is possible to take a world class image with an OTA that has the equivalent of 1/4 wave spherical aberration.
(An RC with a 32% central obstruction has exactly that)