4-inch f/1000mm Takahashi doublet fluorite. Made in 1990, this was a dedicated line of refractors for Japanese and European planetary observers and never ment to be sold in the US. Using the method of long focal length combined with unmatched CaF2, the FC-100N could produce the same resolution and imagery as present in my now gone TMB-100/800. And I have had this scope side by side at Table Mountain Star Party against an FC-100 and a FS-102. Both scopes displayed minor secondary spectrum on Vega and Arcturus at 140x-155x while the FC-100N did not.
This apochromat is perfect for urban and suburban astronomical applications. Where I live, about 14 miles east from downtown Spokane, I still receive a wash of light pollution, especially from fog. Many times the FC-100N will outperform my FCT-150 on Jupiter and Saturn because the light path is more narrow and the aperture is not as finiky with sky conditions. The scope, with Telrad, 6x30 finder, adapters, and Tak tube ring weighs in just under 15lbs and will balance wonderfully on a GP mount. You can also adapt the FC-100N to fit to Losmandy mounts via the Universal Adapter Plate.
Although my hours are 6:40am-11pm, I do not work. So call anytime over questions about this remarkable refractor. I can also send more photos upon request. $2640 includes shipping. The only method of payment I won't accept is paypal (due to fees). At this point no trades please. Thanks for looking.