Unlike monoculars which is one small telescope and can only been seen through using one eye, binoculars is lke having two telescopes, one for each eye. When we use binoculars, we re kind of a four-eyes, aren t we.
Binoculars have two specifications marked on the body of the binocular in the form of 7x 50, where the first number represents the magnification, in this case 7 times, and the second the aperture ,50mm in this case. Many people prefer to carry binoculars around freely, rather than in a case. A second number is the aperture, the diameter of the lenses.
Size is dictated by the objective lens. You can find binoculars in prices ranging from ten dollars to one thousand dollars. Apart from a large number of big companies, there are local manufacturers which produce night-vision binoculars at a much lower cost.
Some high end binoculars, are so well constructed that they come with a lifetime guarantee. The question how to buy a telescope is not a big one, more what you want out of the telescope.
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