Orion Sirius 120ED EQ-G with Dual-Axis Drive Superb 120mm ED optics and fine craftsmanship compare to large refractors costing thousands more Premium system excels for observing or photography of deep-sky and planetary targets Sirius EQ-G Dual-Axis Equatorial Mount provides stability and control Includes dual-axis electronic hand controller. GoTo Hand Controller can be purchased separately Comes with 2" mirror diagonal that accepts 1.25" eyepieces, 26mm Plossl eyepiece, and 8x40 finder