SIMPLE FORM OPTICS SPECIFICATIONS: Tube Diameter : 25mm (1”) Achromatic : 25mm (1”) Objective Dia Focal length of : 178mm (7”) Achromatic Obj. Ramsden Eyepiece : 10x Cross wire : Fine Quality Cross line Graticule . Base : Heavy Metallic Painted Base w/o Leveling Screws Supporting Rod : 15mm (5/8”) Telescope Tubes : Outer Tube of Aluminum, Inner Tube of Brass Focus : By Smooth Rack And Pinion (Appr. 2” motion) Supplied with Perspex Scale And Scale Holder (No up & down motion) SPECIFICATIONS: