Is a telescope that costs more than 100 any good? What is the night vision effect at night?

Don't think about night vision with telescopes, after the telescope is coated, it can increase the amount of light passing through (the brightness enhancement film has this effect, and many businesses sell telescopes that are only coated with good-looking films, which does not help to increase light transparency), so it looks like the field of vision can be brighter, so brightness is exaggerated as night vision. The so-called brightening is only helpful for observation in semi-dark conditions such as dusk and dawn, and has no effect at night in the absence of light or moonlight.

At present, there are relatively cheap night vision devices on the market, about 5,600 yuan, with a magnification function, and the battery is a real night vision device.

It's all a lie, I just bought it for one night, and it didn't work at all.

How far can night vision binoculars see at night? The second-generation low-light night vision device exposes the target in the dark of night.

Night vision binoculars can be seen at night. Ordinary telescopes are invisible at night.

Night vision binoculars, also known as night vision goggles, are commonly known and officially called"Night vision"。It is an instrument that can be used for observation in total darkness or in low-light environments. According to the different imaging principles, the general common ones are divided into:"Low-light night vision"with"Infrared night vision"。

Night vision devices were first used in the military.

Infrared vision can help people observe, search, target, and drive vehicles at night. In an extremely dim environment, the low-light night vision device enhances the weak natural light to the extent that it is recognizable to the naked eye by concentrating light or artificial gain, so as to achieve the night vision effect. The green night vision images that we commonly see in movies or television are artificially gained, low-light night vision images.

Absolutely, as long as there is light. There are infrared night vision binoculars and low-light night vision devices, but there is a severe chromatic aberration and can only be used to distinguish objects. If you want to have the kind of effect during the day, it is sky-high (it seems that the Mi army has equipment now).

Yes, with night vision, with video, video can be done.

Hello and shout judgment, for you to inquire: 500 to 1000 yuan for good binoculars 500 yuan or less, cost-effective amateur astronomical telescopes ** around 1000 yuan (online shopping), a fully functional astronomical telescope ** at least 100,000 yuan. After all, if you have this heart, you don't have the financial ability to support such a luxurious hobby of yours.

Now it's different with the advent of the "personal telescope", which can be used to observe the movements of many planets and various astronomical phenomena for a thousand dollars. There are even ** that you don't need 1000 to buy a change. The first purpose of a telescope is to magnify the opening angles of distant objects, so that the human eye can see details with smaller angular distances.

The second function of the telescope is to feed the beam of light collected by the objective lens that is much thicker than the diameter of the pupil (up to 8 mm) into the human eye, so that the observer can see faint objects that are not visible before. In 1608, Hans Lieberch, a Dutch optician, stumbled upon the idea that he could see in the distance with two lenses, and he built the first telescope in human history. In 1609, Galileo Galilei, a native of Florence, Italy, invented the 40x double-mirror telescope, which was the first practical telescope to be put into scientific applications.