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For longer fl scopes the x-cels/cielo are excellent eyepieces.
I have directly compared the 18 x-cel with ES 20 68. The 18 was a bit better on ease of viewing and fainter stars in clusters were seen….not seen in the 20.
As for dust I haven’t seen it in any of mine, all bought used 25 18 12 9 and 7.
The only one that wasn’t clean was the 12…as ‘someone’ had done a botched job on cleaning it, after claiming it was used once! Could see the swirl marks….I cleaned it properly.
Lots of reports of FC in the 18mm….not an issue in long fl scopes.Not an issue in f5 refractors either.
Put a wanted ad out. I remember and ad for the Cielo 18 a while back.
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