The Cassini Tracker Altitude Azimuth Mount represents a revolutionary new design in telescopes. There s nothing like it in the optics market today! The Cassini C-900135TR telescope is mounted on Cassini s new Tracker altitude/azimuth mount. Its easy-to-use up and down left and right movement allows tracking an object with unprecedented precision using both manual macro adjustments for aiming your telescope and manual micro adjustments for precise observing and tracking. The Cassini C-900135TR incorporates our Wireless Electronic Stabilizing Focuser so you can focus in on your target object using the wireless hand box controller without touching the telescope increasing the telescope s stability for clearer images. The C-900135TR includes Cassini s sturdy fully adjustable pre-assembled metal tripod featuring an accessory tray with slots to place eyepieces or lenses and retractable rubber feet.