[gregbradley]

Originally Posted by Don Pensack

Ernest's measurements of the star size spot at the edge of the field in the Morpheus eyepieces at f/4:
4.5mm--14'
6.5mm--16'
9mm--14'
12.5mm--16'
14mm--24'
17.5mm--not measured
10' is considered essentially perfect, and seen as a tiny dot.
These measurements are at the edge of the field, where you generally aren't inspecting star clusters or double stars.
At f/10, they are all essentially perfect.
I notice at f/5.75, the 14 is nearly perfect at the edge, so if that is the worst of them, this is a killer line.

Thanks Don.

That is very good data.

Greg.