The Dobsonian telescope was designed with a large objective diameter to observe very faint deep sky objects. It was originally designed from readily available components to provide a large yet still portable low-cost option for telescope users.

it is an alt-adz telescope. So you spin it till it is pointing the right direction, then you tilt it till it is pointing at the right angle.

Optismart, Amazon and Ebay all sell dobsonian telescopes. They vary in size and price between sites so you should visit each to find exactly what you are looking for.

It is possible to make your own Dobsonian telescope. It can be quite costly to do so due to the Pyrex lenses. It is an alt-azimuth Newtonian style scope that collects light.

hand telescopes

monocular

binocular

Dobsonian

rich-field telescope

opera glasses

spy glass

spotting scope