A Dobsonian telescope pairs a large-aperture Newtonian reflector with a simple, sturdy alt-azimuth base that lets you point the telescope by hand with smooth up-down and left-right motions. Because the design puts nearly all of the cost into the optics rather than a complex mount, Dobsonians offer the most aperture for the money of any telescope type, making them a favorite for deep-sky observing.
Explore Scientific Dobsonian telescopes range from portable 6-inch tabletop Dobsonians and classic 8-inch and 10-inch Dobsonian reflectors to large truss-tube Dobsonians that break down for transport. An 8-inch Dobsonian telescope is often recommended as the ideal all-around telescope, gathering enough light to show spiral galaxies, planetary nebulae, globular clusters and rich detail on the Moon, Jupiter and Saturn. Larger 10-inch, 12-inch and 16-inch Dobsonians reveal even fainter objects and finer detail for experienced observers.
Dobsonians are quick to set up, intuitive to use and require no polar alignment, making them excellent for beginners and seasoned observers alike. Pair your Dobsonian with wide-field eyepieces such as our 68° or 82° Series to keep objects in view longer, a quality finder scope for star hopping, and a collimator to keep the mirrors aligned. With proper care, a Dobsonian telescope provides decades of bright, breathtaking views of the night sky.
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Dobsonian Telescope FAQ
Is an 8-inch Dobsonian good for beginners?
Yes. An 8-inch Dobsonian is often called the best all-around telescope: it sets up in minutes, needs no polar alignment, and gathers enough light for galaxies, nebulae and globular clusters plus sharp views of the Moon, Jupiter and Saturn.
What is the difference between a solid-tube and a truss-tube Dobsonian?
A solid-tube Dobsonian is one piece and the simplest to use. A truss-tube Dobsonian replaces the tube with poles that come apart, so a large mirror fits in a car and sets up at a dark-sky site. Add a shroud to block stray light and dew.
Can you use a Dobsonian for astrophotography?
Dobsonians are built for visual observing. You can take phone or camera shots of the Moon and planets, but long-exposure deep-sky imaging needs a tracking equatorial mount. See our astrophotography telescopes.
What warranty do your Dobsonians have?
Explore Scientific telescopes carry a limited lifetime warranty for the original owner (electronics are covered for 2 years). Explore One and National Geographic telescopes carry a 1-year limited warranty. Register within 60 days of purchase to activate coverage.
