I have a Japanese made (made by the supplier to Vixen) research grade
120mm f/8.3 (1000mm fl) achromat in a push pull cell. It came off an Antares 812 GP scope, which is a skywatcher 120 with a Japanese lens instead of the usual mediocre Chinese lens. It can be pushed to higher powers than the Chinese objectives, and has less color. I would sell the whole scope, but I want the tube for a 115mm f/7 apo project, and the focuser, frankly, is junk. When sky instruments was importing these lenses, they sold for $449, unmounted. (Check any old S&T) I am asking $325, mounted and shipped, or best reasonable offer. Thanks for looking, Bob.