Sky-Watcher Evostar-150 (HEQ5) 150mm (6") f/1200 Motorised Achromatic Refractor Telescope. The Sky Watcher Evostar series are two-element air-spaced, multi-coated object achromatic refractors. They are truly outstanding, high-performance; high-resolution instruments manufactured to extremely high standards & mechanical precision. With their long focal lengths & breathtaking optical performance, they are ideal for the detailed high-power study of the moon, Planetary Surfaces & other objects in out solar system, giving crisp contrasty images. These telescope packages will stand you in great stead for a lifetime of serious astronomical viewing.