I wouldn't buy those Warren. I think you'd be a lot happier with a 20mm Skywatcher super plossl or Meade super plossl, or you could place a wanted ad for a 20mm TV plossl or one of the high quality 5 element plossls(Celestron Ultima, Antares Elite, Parks Gold, Orion Ultrascopic).
Do we get a picture of what a mower does to an eyepiece
