Orion 9836 120mm f/5.0 Refractor Telescope Optical Tube Assembly Rich-field refractor optical tube assembly with big 4.7" aperture for deep-sky pursuits and wide-field astrophotography use 120mm aperture and 600mm focal length refractor provides crisp wide-field views exhibiting high contrast Perfectly portable at just 8.6 lbs., makes for a great grab and go telescope 2" rack and pinion focuser accepts both 2" and 1.25" eyepieces and accessories Optical tube only - mount, tripod, and accessories sold separately