Dobsonians offer an incredible aperture-to-price ratio, and the FlexTube collapsible fold-away design is perfect for portability and storage
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An effective telescope mount needs to keep a telescope tube rigidly in place, as an movement, even a small vibration, can have a marked effect on the positioning of the object under view, especially at higher magnifications. Traditional tripod mounts undergo significant forces, and tripod costs go up significantly as the telescope weight increases. The Dobsonian mount, popularized by John Dobson in the late 1970’s, is a very simple but effective method of mounting a Newtonian Reflector, based on the alt-azimuth principle, and provides a more cost-efficient method of mounting a telescope, as it doesn't have to cope with large forces on tripod legs. This type of mount only really works when the eyepiece is high up the tube, so is ideal for reflector telescopes. Fast and easy to set up, the Dobsonian mount consists of a box-type mounting which allows the telescope to pivot in altitude, while the box itself is rotated on a base in azimuth. The secret of the design is to correctly balance the optical tube and to use frictional materials, which allow it to move easily when nudged but to stay in position when not. The tube material used on our Dobsonian range is lightweight but stong aluminium.