Dobsonian telescopes combine the advantages of the optical system from the classic Newtonian telescope reflector with a firm and stable, but extremely simple and easy to use Dobsonian frame. This simplified mechanical design of the alt-azimuth mount was popularized by the amateur astronomer John Dobson and gained much popularity amongst those interested in astronomy. Thanks to this functional design it’s possible to create a large yet easy to use, easy to move and cheap telescope for all sorts of enthusiasts. This model telescopes are optimized not only for lunar and planetary observations, but also for viewing deep space: star clusters, nebulas, galaxies. These types of observation require large aperture (lens diameter) and that is why the affordable price of the Dobsonian mount, make this telescope the perfect solution for all astronomy lovers. Our simple and collapsible design of our telescopes, allow one to easily take them to any location, where city lights and pollution can’t ruin the experience. Due to the indisputable advantages of this type of telescope, a number of large manufacturers also produce telescopes "Dobson" and market them.