Astronauts make various common mistakes when they decide to buy a telescope and more so the beginners. There are some key points that the astronauts should consider which they forget to and instead get into a random shop and buy a telescope. A telescope may be cheap and of a poor design such that when you use it makes you get stressed because it does not meet the qualities of a good telescope. Good and quality telescopes always meet someone's desires and expectations. It is important to consider some key points when you want to buy a telescope be it for the first time or just for a replacement. Here are some of the things you look for in a telescope before buying one.
The aperture should be the most important to look for when you go to buy a telescope.The size of the lenses or mirror that focuses light from an object which is very far is what is called an aperture. If your aperture size is not good enough then the image quality might not be good as you want. A good aperture size will help you see images and objects in a very clear way because it is the same as enlarging the pupil of your eye. The determinant of a good telescope which will give you quality images is not the magnification but the aperture. Sometimes telescopes are just advertised by the use of a magnification but you should have the knowledge to know that a large magnification on a too small telescope will give a blurry image. Check out at Scope The Universe.
Light reflection in a telescope is done by the mirror while the refraction is done by a lense. Small telescopes always use lenses while the large ones use mirrors because it is more affordable and this is the best option for you. If you want to view terrestrial or celestial images you should use refracting lenses. Viewing sailing boats birds and landscapes should use telescopes with reflecting mirrors. If you want to only view the heavens then a telescope with reflecting mirrors should be the best option for you. Chromatic aberration does not occur if you use telescopes with reflecting mirrors whereby various colours are not brought to the same sharp focus.There is always certain positions you should place your telescope so that you can have a nice viewing. At night when viewing objects, you will notice that objects are moving and this is because of the earth rotating on its own axis.
Buying telescopes from the streets, stores and camera shops with caution is not the best thing to do. A telescope such as Gskyer Telescope should be bought from a shop which has the best and experts of astronomy. Compared to other manufactures, telescope manufactures produce telescopes of a high quality. If you are buying a telescope, request the seller to allow you test the telescope first.