The optics: The new Sky-Watcher Explorer-150PDS Newtonian Reflector telescope includes the same excellent optics as the Explorer-150P Black Diamond series, but with two key improvements. A 10:1 gear reduction focuser was used for greater focusing precision, and the tube was slightly shortened to improve performance in primary focus photography. Even better performance can be achieved when using the Sky-Watcher Newtonian coma corrector (No. 20233) for both visual observation and photography. Mount: Sky-Watcher offers a simple solution for hobby astronomers who want to place their small telescope on a convenient computer-controlled mount, but do not want to use a heavy HEQ5 or EQ6 mount. The EQ3 Pro SynScan™ mount uses the same GoTo system used in the HEQ5 and EQ6 Pro SynScan™ mount. It allows the user to set any object or start a guided tour of the night sky with just a push of a button. The extensive database contains over 42,900 objects in the night sky. The EQ3 Pro SynScan™ mount is the perfect instrument for the beginner in visual observation or photography to enjoy the new hobby with minimal setup effort and without already knowing the sky perfectly. The mount comes with an aluminum tripod. Please note: The motor control box (seen to the left of the hand control box in the picture) is designed to be attached to a tripod with 1.75″ stainless steel legs. However, you can attach them with Velcro or similar. Includes: 150mm Newtonian telescope 6×30 finderscope 2″ focuser with 10:1 reduction and 1.25″ adapter Eyepiece: 28mm 2″ LET EQ3 Pro SynScan™ mount Tripod with aluminum legs and tray SynScan hand control box and motor control box with cables Counterweights! Power supply and batteries are not included!