DESC: This remarkable scope combines powerful 150mm-diameter reflector optics with point-and-view simplicity in one nicely portable package. And with the optional IntelliScope Computerized Object Locator, even the first-time stargazer can pinpoint the location of 14,000+ celestial wonders stored in the IntelliScope's databank.The optical tube rides on our state-of-the-art Dobsonian base, equipped with springless CorrecTension friction control for smooth movement and always-perfect tube balance.