-
Telescopes can't just look at magnifications.
There are big differences between different brands of telescopes. For example, the choice of glass, some are ordinary glass, some are quartz crystals, this cost is too much! There is also the grinding accuracy of all lenses, there is a big difference between different grades, and each lens of a good brand has undergone strict laser testing, and the lens will be scrapped if there is a slight mistake, so the production cost is very high, so the price increases.
When the lens is highly smooth, its image quality is unmatched, allowing for higher magnifications at the same caliber without sacrificing image quality. Then there are accessories, lens barrels, etc., some are hard plastics, some are high-quality alloy materials, which not only require the investment of manufacturers, but more importantly, have technology, and even introduce some foreign equipment. That's why there is such a big difference in price.
-
The answer on the first floor is incorrect.
Personally, I think that the field of view of astronomical telescopes is too small, and the viewing needs a large field of view, from this point of view, astronomical telescopes are not suitable for viewing. Other reasons are not well understood.
-
Astronomical telescopes are significantly different from viewing scopes in terms of aperture, focal length, and so on. Moreover, astronomical telescopes have many functions that viewfinders do not have, such as the equatorial mount theodolite on astronomical telescopes, etc.
Now in the market, in order to meet the needs of consumers for viewing and viewing the sky, a telescope has been developed that has both viewing and viewing the sky. But its performance is far from being as good as that of a formal astronomical telescope.
-
Astronomical telescopes look at aperture, and the larger the aperture, the more expensive it is. The greater the clarity.
-
Astronomical telescopes have so many magnifications that you can't find what you're looking at on Earth.
-
Vote for Drea Mfly.
The ground floor is outrageous.
-
Astronomical telescopes are also telescopes, and the basic structure of telescopes is similar. (There are two types of telescopes: Galilean and Kepler.) The Galilean type consists of a concave lens and a convex lens, while the Kepler type consists of two or two sets of convex lenses; Galileo-type orthogonal image, Keplerian-type inverted image) It's just that astronomical telescopes have larger aperture and better optical performance than oak medium-sized telescopes.
The magnification (the focal length of the object branch divided by the focal length of the eyepiece) mentioned by the landlord does not seem to be a parameter of the astronomical telescope, because the eyepiece can be replaced. When the objective lens is fixed, the ultra-short eyepiece with the focal length beam can achieve ultra-high magnification, but the imaging quality at this time is really not complimentary, because the higher the magnification, the blurrier and darker the image will be. I think the aperture is the key to the quality of an astronomical telescope.
The larger the aperture, the larger the spotlight, and the clearer the image (the higher the resolution), the fainter the object we can see.
Hello Beginners mostly choose refraction and maca reflection is not recommended to use Sky Wolf Sailing, Xingtron 80eq, Boguan 80, Boguan Marca, Xinda 80, Xinda Marca are all great Beginners are very practical! I've been playing with equipment for a long time, and it's been one step at a time, and my first astronomical telescope was the Changge of the Celestial Wolf.
The pole is an equatorial mount.
Buy an 80eq 80eq parameter: >>>More
**Proportional to the square of the aperture (i.e., the area of the primary mirror). If you have money, you can see details such as the spiral arm of the extragalactic galaxy with an aperture of more than 200mm, and a spot of light below 200mm. The same is true for nebulae, the stars are one point anyway, even with Hubble, but large aperture can distinguish more binary stars, polyconjunctions. >>>More
First of all, you have to know what you want to see, the planet Deep Space Hoshino? >>>More
1. Model selection.
There are many criteria for model selection, including aperture, focal length, focal ratio, magnification, coating, finderscope, equatorial mount and other parameters. The various parameters are dazzling, for beginners, don't be afraid, we can grasp the main contradictions: one is the focal length, and the other is the caliber. >>>More