Sky-Watcher Dobsonian telescopes at Ontario Telescope. This collection includes Classic Dobsonian, Flex-Tube, and GoTo Flex-Tube models, giving astronomers a range of options for simple visual observing, large-aperture performance, and easy access to the Moon, planets, star clusters, and deep-sky objects. If you are looking for a powerful Dobsonian telescope in Canada, the Sky-Watcher Dobsonian lineup is a great place to start.