I've always had a high regard for the vintage all silver Celestron plossls. They're made by Vixen Japan in the early 80's, and are possibly the finest plossls bar the televues.
It appears these "NJ" stamped eyepieces were a very costly prototype to the original Televue NJ smoothsides. The only items contracted to have the NJ stamp were made for Televue. It appears that the same optical house contracted by Televue let maybe 50 or so of these slip out before Al Nagler put a stop to them.
These were branded with the Celestron label, and afterwards the eyelens design was modified in favour of a less expensive design to mass produce.
I was happy enough when i found this out, then a friend in Canada offered me a 2nd matching eyepiece. I was amazed to find another. They are really beautiful, with the sharpest field stop, nice coatings, and a fov app 49 degrees.
I'm waiting to try them in the Denks.
Edited by mike bacanin, 23 September 2010 - 10:01 AM.