![]() ![]() In regards to the optics, Dobson also included thinner mirrors on the Dobsonian. These tubes are equally as strong and do not effective performance, but enable the price of the telescope to be reduced dramatically. TubesĪnother important change from Dobson was to replace the expensive fiberglass tubes and swap them out to other material that is more cost effective. The use of an Alt-Azimuth on a Dobsonian, differs to the commonly used Equatorial Mount used on other Newtonian Reflector Telescopes (some use a variant called a German Equatorial Mount or GEM). The Alt-Azimuth mount is considerably easier to use and is therefore an excellent choice for beginners and amateur astronomers. Now, while this sound rather technical its actually quite simple.Īn Alt-Azimuth Mount is a simple two-axis mount that supports and rotates the telescope about two perpendicular axes – one vertical and the other horizontal. ![]() ![]() Every Dobsonian will have an Alt-Azimuth (Altaz) Mount. The Alt-Azimuth mount is the standout and most obvious sign a telescope is a Dobsonian. Here are the elements of the Dobsonian which have made them to be manufactured considerably cheaper and that enable us to get them for a far more respectable price: Alt-Azimuth Mount The Dobsonian telescope is usually cheaper and much easier to use than other varieties and styles of telescopes available on the market (primarily over Refractors and Cassegrains). The legacy of his revolutionary work is that he has enabled telescopes to be introduced and widely used by astronomy beginners. It is the result of young astronomer John Dobson who devised the telescope in the 1960s.ĭobson claimed that he he hadn’t really changed the landscape of telescopes with the Dobsonian, but his modest approach doesn’t reflect the true reality of what he was able to do for the field of Astronomy. The Dobsonian telescope is only a fairly recent innovation. However, if you want to learn more about a Dobsonian and why it has become so popular of late, then stick around as I will now discuss this telescope type in greater detail. That’s the very basic overview of the difference and hopefully it will have helped you understand the major distinctions between a Dobsonian and a Reflector. The Dobsonian typically utilizes an Alt Altazimuth mount, whereas general Reflectors make use of an Equatorial Mount.ĭespite the differences in the mounts, the optics and way they are designed are the exact same when you compare a Dobsonian to a Reflecting telescope. The only true difference is that just uses a different mount to your average Newtonian reflector. So what is the difference between a Dobsonian and a Reflector? Theoretically, a Dobsonian is a reflector. Two of the most popular types of telescopes are the Dobsonian and Reflector. This is why it is so crucial to conduct some research ahead of time and ensure you know what you need to get to observe what you want. When it comes to choosing a Telescope – there’s actually quite a few different styles and types to consider. If you’re looking to get into Astronomy, then there is quite a lot to take in, especially all of the different names and acronyms. ![]()
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