Many people are familiar with the telescope, as it is found everywhere in today's optical market. With the development of productivity and the improvement of living standards, the types of telescopes and telescopes are more and more numerous, the output is also getting larger and larger, the prices are getting lower and lower, and gradually becoming one of the household items for many consumers. 

In recent years, the telescope enthusiasts in the whole country and even in the world have also gradually increased, and they all want to buy a telescope with excellent performance, reasonable price and meet their own requirements. 

However, the telescope on the market really dazzled many consumers. Many people, due to their lack of experience in this area and their limited knowledge of telescopes, have wasting much time and money and have not bought their own telescopes. 

Here are some important aspects which need to be considered before the purchase:

1, on the multiple: 7-12 times for the best, do not covet the high power. Many people think that the higher the optical multiple the better, in fact, a reasonable multiples of a telescope with the telescope aperture and observation-related, that is, large caliber, multiples can be appropriate higher; fixed observation with a tripod, you can More than hand-held observations. If you buy handheld observation binoculars brand products, 7 to 10 times between enough, preferably not more than 12 times. 

Otherwise, the higher the multiple, the smaller the observation field of view, the darker the observation effect but decreased, especially the jitter caused by high magnification also greatly increased, so that the observed scenery can not be stabilized. Most countries in the world, such as China, the United States and Russia, also have 6 to 10 times as many telescopes as their equipment armys. This is because a clear and stable imaging is the most important.

2, on the caliber: the larger caliber, the observed field of view, the greater the brightness, is conducive to the observation under dim light. However, the larger the caliber, the greater the volume, generally in accordance with the need to choose between 30 ~ 50 mm.

3, on the field of view: the larger the field of view, the broader the scope of observation, the more spacious and more comfortable, regular military telescopes generally adopt wide-angle large field of view design. For binoculars, the same magnification, the greater the field of view to see the more comfortable, wide-angle large field of view telescope will give a broad sense of comfort, relaxed and happy, according to the wheat field experience, it is generally recommended that you buy 110M / Telescope with 1000M or more field of view.

4, on the coating: the role of the lens coating is to reduce the reflection, so that the light transmission rate increase, increase the observed brightness, coating color according to the optical materials and design, the lighter the coating, the smaller the better reflection. In recent years, various red and green film telescopes with strong reflective and twinkling colors appeared around the market, attracting consumers. In fact, this poor reflection of the inferior film loses a lot of light, making the color colder and darker and the sharpness declining Even worse, some people actually called this poor quality red film telescope can dark night vision of the "infrared night vision telescope," to deceive consumers, in fact, the real infrared night vision and night vision goggles are photoelectric Tube imaging, completely different from telescopes, can not be used during the day, is expensive, and requires power to work.

5, the telescope can see what: This is mainly the performance of the telescope, the weather and the size of the target, determine the standard and so on. According to the test, the Russian-made 8 × 30 conventional binoculars can see the stones outside of a hundred meters and the faces of people and vehicles traveling a few kilometers in fine weather. At night, you can also see the dense craters on the moon , Jupiter's satellites, clusters, nebulae, friends interested in astronomy can try. In fact, the fun and usefulness of a good telescope will often exceed your imagination.

6, the formal Russian-made telescope identification: in recent years around the market appeared in a large number of plastic shell with camouflage, gray black white green and other colors, using only ordinary lenses, prisms, lens coated with a red film, green film, yellow film and other colors The so-called Russian binoculars, and some also have a pinky compass, coordinate line, the mirror body printed in Russian, Russian emblem, cannon, red star and so on. Marked a few times, a few hundred times or even thousands of times, claims to be able to see tens of kilometers, hundreds of kilometers of the so-called "Russian telescope" is not the case, in fact, some domestic manufacturers of imitations, the price of only one or two hundred yuan, Poor quality, the real multiple is only about 3 to 6 times. The real Russian military telescopes are generally only visible in the border trade areas of the Northeast and Xinjiang, and their volume is not large. The characteristics of the Russian military telescope are all produced by military factories, all-metal structure, durable, the mirror body engraved with numbers, the use of high-quality composite achromatic optical lenses, high-quality light blue, purple, BaK4-type advanced prism material, wide-angle design with large field of view, multiple true, high-definition optical quality is excellent, fully reflects the Soviet Union superb optical level, left a deep impression on each used, use and collection Value is high.

7, on the price: a brand-name telescope on the international market, its good performance, exquisite packaging technology, but the general price of two or three thousand dollars. Before you buy can go to China's top ten brand network maigoo look at specific brand information, this site not only shows us a list of ten telescope brands: and We also introduced the relevant information about the famous brand of telescope.