Discovery Telescopes
Discovery Telescopes makes the two end–series of telescopes: they are premium PDHQ Dobsonians and the Truss Tube Dobsonians. They are having very different features. All Discovery telescope include the finest hand figured optics available till now and be available only after placing order i.e. made to order. So it is not mass available. Every set of optics is tested until it satisfies all the standards for diffraction limitation. There is no any facility of its approval without satisfying its entire standard. Discovery telescope is an assembled according to the standard and checked before being supplied to customer. This type of telescope is not found in department store, so to have one you need to place order and then it will be handcrafted and built by experts.
Now let us look some exciting features of Discovery Telescopes 10” f/6 Premium DHQ (PDHQ) Split-Tube Dobsonian Telescope: this is of high quality and manufactured from plywood, and uses only hand-figured optics as per the standards, it is made up of Ebony Star Formica bearing surfaces, having adjustable bearings and special kind of split-tube for easy storage and transportation, it also having aluminum coatings on both primary and secondary mirrors.
And there are some additional features also like 2” Crayford focuser with 1.25” adapter, silky smooth movements and adjust for perfect balance, focal ratio of f/6 and Non-reflective interior surfaces.
Now the other category of discovery telescope is 17.5” f/5 Truss Tube Dobsonian Telescope. This is of highest quality and crafted from apple plywood and finished by professionals. It also uses hand-figured optics as per the standards, it is having exclusive, Ebony Star laminated tube bearings and aluminum truss tubes with black foam covering, and aluminum coatings on both mirrors. And this type of telescope uses a heavy duty metal mirror mount with solid and having welded construction. It also comes with 2” Crayford focuser with 1.25”adapter, and include rip-stop nylon light shroud with primary and secondary mirror dust cover. And smooth movement with perfect balance and fully adjustable four vane diagonal spider. It is of high quality construction with focal ratio of f/5.
Another category of discovery Telescope is 12.5” f/5 Truss Tube Dobsonian Telescope. It also comes in 2” Crayford focuser with 1.25” adapter. And having all the same feature as of 17.5” f/5 Truss Tube Dobsonian Telescope. The only difference is in the size of the telescope. Also you have to pay more for 17.5” f/5 as compare to 12.5” f/5.