Sky-Watcher Skymax-102 (AZ) 102mm (4"") f/1300 Syn Scan GO-TO Maksutov-Cassegrain Telescope. This compact telescope, with its high-resolution multi-coated optical system, excels at medium-to-high-powers for the examination of the surface detail on the Moon, planets & also for double-star observations. Also useful for terrestrial use.