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Vixen lvw Anyone
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06-09-2014, 12:54 PM
MortonH
Deprived of starlight
Join Date: Nov 2006
Location: Sydney
Posts: 3,775
The XF12mm has significant field curvature. In a small f/5 scope it will be nice on axis but stars near the edge are just a blur. And the curvature is noticeable from around 50% from the centre.
The XF8.5 is much better and is an excellent eyepiece.
MortonH
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