Quote:
Originally Posted by AstralTraveller
Is the 20mm one of the old 'silver top' plossls made back in the 1980's? If so I have the 17mm and it is a very good eyepiece. I've compared them to 21mm Televue plossls and any difference was undetectable. I don't need or want it but I can recommend them.
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I am pretty sure that this is not that model

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