telescope lyrics

A telescope was an optical instrument used to observe, aim, and measure distant objects. Its angular magnification was generally greater than 1. In a broad sense, it also included astronomical instruments that observed electromagnetic waves invisible to the human eye. It was mostly used in ground observation, astronomical observation, astrophotography, space exploration, and other fields. In 1608, the Dutchman Hans Lieber made the world's first binoculars. In 1609, the first refraction telescope was made by Galilei, and the telescope began to be used in astronomy. An astronomical telescope was an astronomical observation device that collected celestial radiation and determined the direction of the radiation source. It usually referred to an astronomical optical telescope with light gathering and imaging functions. According to the principle of imaging, it could be divided into three categories: refraction telescope (using a lens to produce a mirror), reflection telescope (using a mirror to produce a mirror), and catadiopretic telescope (using both a lens and a mirror to produce a mirror). It was not recommended for beginners to buy expensive equipment at the beginning when choosing an astronomical telescope. For example, the price of the more affordable Singterra 80EQ (about 600 yuan) was more suitable for entry. Although it was cheap, it could shoot the three common planets, the moon, M42, and so on. When choosing two products with the same price but different brands and a difference of 1 - 200, the difference was not big for beginners. They could choose the one they liked more. There were many brands of astronomical telescopes, such as Star Terran, Meade, Cinda, Exploration Science, Boguan, etc. Among them, Star Terran was the best-selling. It was recommended to give priority to well-known brands and avoid unknown small brands to avoid stepping on the pit. The budget astronomical telescope worth buying in 2024 is the Celestron StarSense Explorer DX130AZ.(Price: $379.95, original price: $479.95, 5.1-inch large aperture, 650mm focal length, equipped with StarSense sky recognition technology, etc.), Orion Observer 90mm telescope (Price: $379.95, 90mm objective lens diameter, 86.4cm tube length, comes with two eyepieces), Sky-Watcher Classic 200 (Price: $550.00, original price: $655.00, equipped with 8-inch mirror and other advantages), Celestron 76mm Sign Series Firstscope (Price: $79.70), etc. The novel "Hundred Years of Spaceship" is equally exciting. Everyone is welcome to click and read it!

You might want to ask about the catadioptical telescope. The catadiopretic telescope was an optical telescope with an objective lens that combined reflective and reflective elements. It added a refraction element to correct aberrations on top of a spherical mirror. This kind of telescope had the characteristics of a large field of view, a large focal ratio, and a relatively good image quality. It also combined the advantages of a refraction mirror and a reflection mirror, such as a large field of view, good image quality, a short tube, and easy to carry. However, it also had shortcomings such as relatively high cost and difficult maintenance. The light was first bent through a lens, then reflected and focused by a mirror. In 1931, the German Schmidt invented the optical system of the Schmidt telescope by placing an aspheric thin lens in front of the spherical mirror. Later, the Schmidt-Cassegrain telescope, which was based on the Schmidt star camera and used the Schmidt correction plate to correct spherical aberrations, appeared. The Soviet scholar, Marksutov, used a crescent-shaped lens as a correction lens to create the Marksutov-Cassegrain telescope and other types. There were many brands of catadioptical astronomical telescopes on the market. For example, the Boguan 150/1800 catadioptical astronomical telescope EM10 equator instrument version used a high-performance, high-quality three-piece Marksutov-Cassegrain system. It was composed of a crescent mirror and two spherical mirrors. The image was clear, the contrast was high, and the color difference was effectively controlled. It could be used for deep space observation and to appreciate the details of the moon and planets. Meade's Schmidt-Cassegrain catadiopretic telescope was also well received, and Takahashi's FSQ series of photographic lenses were specially designed for astronomical photography, of which the FSQ85 and FSQ106 were both highly praised. The novel "Hundred Years of Spaceship" is equally exciting. Everyone is welcome to click and read it!

Different cameras and binoculars may require different ports or rings to connect. For example, there were telescope mounts for card cameras and single-lens reflex cameras. When purchasing, one had to choose according to the situation of their own camera. There was also a special mount for the Startrand astronomical telescope camera, which provided Canon's Canon mounting ring, which was suitable for Nikon, Sony, Minolta, Olympus, and other camera mounts. The special mounting ring for bird-viewing glasses was designed for bird-viewing glasses and single-lens reflex cameras, and it used an M42×0.75 interface to ensure compatibility. The special mounting ring for the Laika bird-viewing glasses was designed for specific brands and ports to ensure precise connection. Some cameras, such as the BAC290MC camera, had a C-port interface, and some cameras had a USB3.0 interface. It was necessary to choose a suitable connection interface or an adapting ring according to the specific model of the camera and telescope. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>