This version of the 4.5" Newtonian telescope offers more portability than the standard longer tube Newtonian without sacrificing power or performance. The short tube of this model is only 18" long and has a built-in correction lens, giving it all the focal length of the standard model, while reducing aberations. The equatorial mount is stable, with setting circles and slow motion controls on both axes for easy, smooth tracking and comes with a b=attery operated motor drive to ensure accurate tracking of celestial bodies.