Sky-Watcher 70/900 AZ-Go2 Refractor TelescopeThe Sky Watcher 70 900 AZ Go2 is a 70mm Achromatic Refractor Telescope that come with short focal length of 900mm. This makes the 70 900 AZ Go2 ideal for high magnification use, such as viewing the moon and planets. Images viewed through a refractor telescope have a classic quality that other telescope designs lack. Since a refractor does not use mirrors to view objects, you get a generally sharper image. The AZ Go2 Mount WiFi controllable with iOS