I acquired a Celestron 19 mm Ultima Wide Angle eyepiece recently. It is my understanding that the Ultima Wide Angles were only available for a short period of time and that there were only 3 eyepieces in this series, the 19 mm, I believe a 23 mm and maybe one about 16 mm, but I am not really sure. Can anyone provide more information about these eyepieces.
Barry Simon
Barry Simon
