Hi Dennis , I got me one of the 3mm Planetary eyepieces from Andrews ( Long Perng ) and for the asking price its really very good , it gives me 166x in my LP 90mm f500 LP apo .
It has 20mm eyerelief as the whole range does has , so its easy to look thru and for the $59 ( the rest are $99) its definatly a keeper , very well made with no suprises when I use it , it just gets on with high powers , verty nice .
These are William Optics eyepieces made in the same factory , but dont have any brand name printed on them ,
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Here is it in my TV Pronto to give you an idea of its quality build and size.
Highly Reccomended .