Looking for a portable and easy to assemble telescope for astronomy, then the Celestron Astromaster LT 70S-AZ Astro Telescope is just for you. The Astromaster LT 70S-AZ produces bright, clear images of the Moon and planets. Easily observe the belts and moons of Jupiter and the rings of Saturn with every one of these fine instruments. Features: - Quick and easy no-tool setup - Permanently mounted StarPointer for convenience - Quick release dovetail attachment - Pan handle Alt-Az control with clutch for smooth andacurate pointing - Rugged pre-assembled tripod with steel tube legs provides a rigid and stable platform - All coated glass optics for clear, crisp images - Deluxe accessory tray for convenient and accessible storage of accessories - The SkyX - First Light Edition astronomy software with a 10,000 object database, printable sky maps and 75 enhanced images Specifications: Optical Design: Refractor Aperture (mm): 70 mm (2.76 in) Focal Length (mm): 700 mm (28 in) Focal Ratio: 10 Eyepiece 1 (mm: 20 mm (0.79 in) Magnification 1: 35 x Eyepiece 2 (mm): 10 mm (0.39 in) Magnification 2: 70 x Finderscope: Built-on StarPointer Mount: Altazimuth Tripod: 12\" steel tubes Highest Useful Magnification: 165 x Lowest Useful Magnification: 10 x Limiting Stellar Magnitude: 11.7 Resolution (Rayleigh): 1.99 arc seconds Resolution (Dawes): 1.66 arc seconds Light Gathering Power: 100 x Angular Field of View (deg): 1.7 deg Linear Field of View (@1000 yds): 89 ft (27 m)