CES1112 Features: * Telescope * Quick and easy no-tool setup * Slow motion controls for smooth tracking * Fully coated glass optical components with high transmission coatings for enhanced image brightness and clarity * Fully coated glass optical components with high transmission coatings for enhanced image brightness and clarity * 3x Barlow lens triples the magnifying power of each eyepiece * Accessory tray for convenient storage of accessories * "The SkyX First Light Edition" astronomy software with a 10,000 object database, printable sky maps and 75 enhanced images * Optical design : Newtonian reflector * Aperture (mm): 127 mm (5 in) * Focal length (mm): 1000 mm (39 in) * Focal ratio: 7.87 * Eyepiece 1 (mm): 20 mm (0.79 in) * Magnification 1: 50 x * Eyepiece 2 (mm): 4 mm (0.16 in) * Magnification 2: 250 x * Barlow lens: 3 x * Finderscope: 5x24 * Mount: German equatorial * Tripod: Aluminum * Highest useful magnification: 300 x * Lowest useful magnification: 18 x * Limiting stellar magnitude: 13 * Resolution (rayleigh): 1.1 arc seconds * Resolution (dawes): 0.91 arc seconds * Photographic resolution: 254 line/mm * Light gathering power: 329 x * Angular field of view (deg): 0.8 ° * Linear field of view (1000 yds): 43 ft (13 m) * Secondary mirror obstruction: 1.6 in (41 mm) * Secondary mirror obstruction by Diameter: 32 pct * Secondary mirror obstruction by Diameter: 32 pct * Optical Coatings: Aluminum Dimensions: * Dimensions: 55" H x 28" W x 20" D Warranty: * 2 Year warranty