Made by Guan Sheng Optical, a manufacturer good enough for Meade.

SV30 30mm focal length OR

SV42 42mm focal length. OR

SV50 50mm focal length

Auction is for one eyepiece.

Extract from a telescope magazine review:

"...the eyepieces from the Guan Sheng Optics (GSO) factory in Taiwan really impressed me. They all demonstrated impressive qualities of design, fabrication and optics. The outstanding value for money must be the GSO Super View eyepieces, superbly manufactured and a joy to hold in your hand and look through. Any limitations in the excellent modified Erfle five element fully multicoated, edge-blackened optics are more likely to be from the cost saving design than from the manufacturing standards. I thought the 20mm GSO SV eyepiece was so good, I bought it too!"