This is the same type of Nikon Zoom 9-21 mm (marked 20x-45x) 1.25' made in Japan that was reviewed in Cloudy Nights (article under zooms, 4 zooms reviewed).
Reviewed with the Televue-Vixen, Leica and Orion.
The Nikon won the on-axis sharpness category. Constrast also won against the other three.
The zoom acts like an ortho on planets!! Zoom action is very smooth, parfocality maintained fairly well.
New sells currently at $245 plus shipping from the dealer, APM-USA.
Like new condtion. $200 delivered.
NIKON is recognized as the #1 mane for optical quality in Japan.