These telescopes come with a higher price tag, but the simplicity of use and care may make it worth it to you. Many astrophotographers prefer this route because of all the pro’s, and the chance of chromatic aberrations is reduced or removed.ĪPO stands for apochromat, and in short means that there are multiple lenses to adjust and correct the color distortions of light traveling through glass. The larger APO refractor telescopes are sought after for their quality optics. It does not take up much space either if you are limited on storage space. This telescope is an excellent choice for people new to stargazing because this device is effortless to maintain, set up, and adjust for viewing. To learn more about planet viewing and filters, check out our in-depth article here. If one wants to view the planets, or bright deep space objects (DSO’s), then a refractor scope is a good fit. Likewise, this kind of scope is economically practical for those starting out a hobby or study about space and stars.
If one will be doing an observation of celestial bodies just near Earth such as the moon and other planets, then a refractor scope is an ideal choice. Like any other devices, there is a preferred time of when to use a refractor scope. When is the Best Time to Use a Refractor Style Telescope The lenses used for this scope have a higher upfront cost particularly if you will be buying a larger size scope.The issue on spherical and chromatic aberration wherein a color fringing overlaps over the image formed.No more re-alignment of lenses or collimation.There is less degradation of imagery because it has a sealed tube.Images formed are as sharp as that of reflecting telescopes.Suitable for viewing things during the day and images are upright to the observer.See our articles on the reflector, and Cassegrain telescopes.Ī better way of explaining the continued existence of a refractor telescope is seeing the pros and cons. A good example is the Schmidt Cassegrain scope. Some of the modern telescopes today are even hybrids of a refractor and reflector telescope. In fact, a simple refractor scope is the best considering those who are starting out with astronomical studies. True, that refractor telescopes have limitations and setbacks, but it does not remove the fact that it is still a viable tool. Why Do We Still Use Refractor Style Scopes Instead of having a tube 150 feet long, the length of the refractor scope was able to shrink to about 8 to 20 inches. Dollond created the first patented achromatic refracting lens in 1733. Luckily, John Dollond, a British optician, found a cure for this issue. Later on, issues about spherical and chromatic aberration sprung up in the community. Galileo’s enhanced refractor became the first viable telescope for astronomical studies. This improved scope made use of a convex lens to make the outcome image in an upright orientation. Meanwhile, the first version of the refractor was further enhanced by Galileo in Venice during 1609. This situation burst out the controversy of who is the legitimate inventor of the said tool. For instance, Jacob Metius has applied for a patent of his refractor telescope at the same time as Hans and Zacharia. This has been considered as the first invention, although some parts of the world have been using refractors at some point in time already. The first invention of a refractor telescope was in the Netherlands in 1608 by Hans Lippershey and Zacharia Jannsen.
But the final decision of whether to have one or not rests in your hands.īelow are some more in-depth details regarding refractor telescopes. This telescope has several things to admire and gripe about. The eyepiece magnifies and straightens the light for your eye. Light travels through the objective lens and is slightly bent (refracted) to create a focal point for the eyepiece to receive.
The first design being crude, but functional viewed distant objects on the horizon and in space, which led to discovery and understanding of the night sky.Ī refractor telescope is composed of two lenses an objective lens and an eyepiece. In contrast to reflecting telescopes, a refractor telescope or refractors make use of lenses to gather light from objects and direct it towards the eyepiece.
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