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Originally Posted by xrekcor
Congrats Mark!,
btw, John I have determined the EOF in the 3.5mm to be as good as the 10mm. the
same flat field view.But then again I'm no optrican, have you tried one?
regards,CS
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Rob,
I haven't used the 3.5mm but I have used all the other 1.25" versions namely (5mm,7mm,10mm,14mm and the 20mm) The 5,7 and 10 have perfectly flat fields. The 14mm has minor field curvature which gets a little worse in the 20mm, however its still a very good eyepiece and I rate it 9/10.
I rate the 5,7 and 10mm's as 9.7/10 eyepieces, the 14mm as a 9.2/10 eyepiece and the 20mm as a 9/10 eyepiece.
Lee,
You will love your new 10mm Pentax XW, its as good as it gets in 10mm focal length. 1st look at a big glob like 47 Tuc, you gonna say "Oh f---".
CS-John B