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Different Options Of Reflecting Telescope

By Jamez Jormason

Reflecting telescopes have been utilized for a long time now. They were first created in the 17th century and are sometimes called a reflector that has led to confusion with the reflecting and refracting telescope. The refracting telescope precedes the reflecting telescope but it’s seldom used and most telescopes that are used today are the reflecting type.

It is because refracting telescopes suffer from chromatic aberrations, a result of the various refractive indexes on the lenses in these telescopes. What this means is that around each picture, color fringes appear. While it could be reduced, it is less difficult to use a reflecting telescope.

Design Factors

The first reflecting telescope to solve the problem of chromatic aberrations was a telescope that was invented by Sir Isaac Newton. The Newtonian design for reflecting telescopes is in use these days and is one of the simplest designs of modern telescopes available these days. It is also one of the most inexpensive telescopes. Anyone is deciding to make their own telescope could put together a reflecting telescope of this kind.

The Cassegrain or Classic Cassegrain telescope is very popular and this is in part because of its compact design. This is achieved by folding the optics in the telescope. While the design does lose some light gathering power, it has a benefit with a closed tube which stays clean on a regular basis.

Best telescopes follow the Ritchey-Chretien design. It’s an offshoot of the Cassegrain design and has two hyperbolic mirrors. This design characteristic differs from the Cassegrain, which employs one parabolic primary mirror instead. This kind of telescopic lens is best in photography.

Another reflecting telescope that is used is the Yolo. One of the problems associated with this telescope is that of astigmatism. This leads to double vision and certain blind spots. It can be corrected however and an advantage of this telescope is the fact that it eliminates the problem of coma, a problem prevalent in many telescope designs.

Depending on your particular needs, you can find different types of reflecting telescopes that could fit your specifications. For amateur telescope building and astronomy, starting with a Newtonian telescope is a great place to begin. It is also the least expensive kind and a good starting point when you are just starting to explore the world of telescopes. Once you have ignited your passion, there are various other designs that you can try out for star gazing and wide field observation.

Another important subject besides astronomy that you can study in university or school is biology. If you have a test to analyze microorganism in your laboratory, it is a great idea for you to find microscope. You can check out microscope for sale site where you can get useful information about microscope lens you want.

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Article Citation
MLA Style Citation:
Jormason, Jamez "Different Options Of Reflecting Telescope." Different Options Of Reflecting Telescope. 17 Aug. 2010. 30 Sep 2014 <>.

APA Style Citation:
Jormason, J (2010, August 17). Different Options Of Reflecting Telescope. Retrieved September 30, 2014, from

Chicago Style Citation:
Jormason, Jamez "Different Options Of Reflecting Telescope"

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