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There are three main kinds of telescope available – refractor, reflector and catadiopiric – and each one has different uses, advantages and disadvantages. What’s more, within each type of telescope, there are different sizes and power ranges available, as well as additional features – all of which are things to consider before making a purchase.
Refractor telescopes use an objective lens made from two glass elements, which removes the prismatic effect of rainbow colours around the image that is caused by a single glass lens. However, the design of double-glass refractor telescope lens makes them an expensive choice, but one which provides extremely high quality images. They are perfect astronomical telescopes for serious astronomers wishing to view finer details. Another advantage of the refractor is that they are able to withstand knocks as they won’t come out of alignment. This makes them a great choice for being transported around and also for those who don’t want a high maintenance telescope.
Reflector telescopes use mirrors to project the image back to your eye. They are the best value for money when buying a large aperture and are also able to provide clear and sharp images much more cheaply than a refractor can. Another reason for the reflector’s popularity is that it is more transportable than a refractor because it can compact more. The disadvantages, however, are that some maintenance will be required to realign the mirrors from time to time and to clean the lens, which will gather dust more often.
Finally, catadiopiric telescopes came about to bring together the best parts of refractors and reflectors. They use both optical lenses and mirrors to produce images and so will need some realignment from time to time but are less prone to dust collection than reflectors. They are also priced about midway between reflectors and refractors.
The Article is written by www.sherwoods-photo.com providing Telescopes and Astronomical Telescopes. Visit http://www.sherwoods-photo.com for more information on www.sherwoods-photo.com Products and Services___________________________Copyright information This article is free for reproduction but must be reproduced in its entirety, including live links and this copyright statement must be included. Visit www
Refractor telescopes use an objective lens made from two glass elements, which removes the prismatic effect of rainbow colours around the image that is caused by a single glass lens. However, the design of double-glass refractor telescope lens makes them an expensive choice, but one which provides extremely high quality images. They are perfect astronomical telescopes for serious astronomers wishing to view finer details. Another advantage of the refractor is that they are able to withstand knocks as they won’t come out of alignment. This makes them a great choice for being transported around and also for those who don’t want a high maintenance telescope.
Reflector telescopes use mirrors to project the image back to your eye. They are the best value for money when buying a large aperture and are also able to provide clear and sharp images much more cheaply than a refractor can. Another reason for the reflector’s popularity is that it is more transportable than a refractor because it can compact more. The disadvantages, however, are that some maintenance will be required to realign the mirrors from time to time and to clean the lens, which will gather dust more often.
Finally, catadiopiric telescopes came about to bring together the best parts of refractors and reflectors. They use both optical lenses and mirrors to produce images and so will need some realignment from time to time but are less prone to dust collection than reflectors. They are also priced about midway between reflectors and refractors.
The Article is written by www.sherwoods-photo.com providing Telescopes and Astronomical Telescopes. Visit http://www.sherwoods-photo.com for more information on www.sherwoods-photo.com Products and Services___________________________Copyright information This article is free for reproduction but must be reproduced in its entirety, including live links and this copyright statement must be included. Visit www