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Old Thursday 14th December 2006, 22:31   #13
henry link
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Join Date: Feb 2004
Location: north carolina
Posts: 4,161
Thanks Steve. I know you use this test pattern so you know that when looking at astigmatic vertical and horizontal bars at the edge it's difficult to decide when you see the best focus with the least astigmatism. So my figures should be read as no more than rough approximations, + or - one element at best. The center sharpness of all of these eyepieces is excellent. None of them limited visible detail in the center at any magnification for my eyes.

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