[Pre Order - allow extra time] Explore Scientific AR152 152mm f/6.5 Achromatic Refractor Telescope (OTA only) 152mm Aperture, 988mm Focal Length, f/6.5 Focal Ratio, Achromatic Doublet Lens System, 2" Dual-Speed Crayford-Style Focuser, 2" Dielectric 90°...