Konus 1780 Newtonian telescope diam. 4.5", focal 500 mm with R.A. motor drive, diameter 114 mm (4".5), focal lenght 500 mm (20"), focal ratio f/4.4 (1780, KONUSMOTOR 500)
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Konus Konusmotor-500 4.5"/114mm Newtonian Reflector Telescope Kit (500mm f/4.3) with Motorized Equatorial Mount for Sale in Chula Vista, CA - OfferUp