G'day Richard,
My research and the opinions I received, not on this thread obviously!, indicated these eyepieces were excellent for planetary viewing. I subsequently purchased 2 UO Orthoscopics from another IIS member, the 12mm and the 6mm. The 127mm F9.4 refractor I have been building, for planetary viewing, using a Surplus Shed objective is still to be completed, so I have only used the eyepieces in my 12" F5 dob, which isn't ideal for planetary viewing! From the limited use they have had (haven't had a good clear sky in weeks!) they appear to be good eyepieces, well worth the money I paid. Time will tell, but I am confident that they will prove their worth.
Cheers
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Chris