Do you recommend a telescope!! Thank you

200 yuan can buy a phoenix 90060 But for the quality compared to the big brands can not be compared, then again, you only spend 200 yuan You can buy a most entry-level astronomical telescope The cost performance is already very high For other big brands 200 yuan, that is, an equatorial mount or a good tripod.

This mirror was bought only to see the lunar surface, craters and landscapes, and for other planets, expectations were not too high. But what I can guarantee is that it is definitely much stronger than the binoculars at the same price mentioned upstairs, after all, the focal length is there, and the quality of any binocular primary lens of the same price is not comparable to the quality of the monocular lens (the same ** one binocular needs to make 2 primary lenses, and a monocular only needs to make one lens).

The landlord is very "rice" If you want to see the moon, you can buy it, after all, it's only 200 yuan, and it's not good to say that the mirror of more than 1,000 yuan is just to make your profits, and it's not just this**, so there is no loss in buying! Novices don't need to buy so many enthusiasts on the Shepherd Astronomy Online are introduced to this mirror. Because it's cheap.

Beginners are all about learning!

Hand-held telescopes, generally speaking, it is good to choose binoculars, and there is no three-dimensional sense of monocular.

You can pay more attention to the local gymnasium.

Also, pay attention to optical stores, photographic equipment stores, sometimes there are such things.

However, there are a lot of fake products now, counterfeit and inferior ones account for more than 95% of the market, and the trouble is that there are false propaganda, such as "night vision", "infrared", "Japanese cherry blossoms", "Russia" and so on, so it is recommended that you understand the basics: you can take a look.

Click on "Telescope Knowledge and Introduction" - there is a "Common Sense and Identification" in it

Particular attention is paid to the issues related to multiples, military, night vision, etc., that is, the introduction of some common false propaganda. Otherwise, people who don't know will be easily deceived in such a market situation.

It depends on what you're used for, but I like doubles, and now the common ones are panda telescopes, which are not expensive, and I bought fifty dollars for 12 times. I haven't made a counteroffer yet...

Panda 20x50 or Panda 12x50 will do. You can search it online. Good value for money.

d is the objective aperture, 60 mm diameter.

f is the focal length, 500 mm.

9mm and 25mm are the focal lengths of the two eyepieces, respectively.

The multiplier of your telescope is the objective focal length divided by the eyepiece focal length.

If you use a 9mm eyepiece, the magnification is 500 divided by 9, which is approximately equal to the multiple.

If you use a 25mm eyepiece, the multiplier is 500 divided by 25 equals 20x.

So you use a 9mm eyepiece, and the magnification is relatively large.

The smaller the eyepiece millimeter, the greater the magnification.

If the product of the same grade:

45 caliber, it is not easy to carry, but it is a little more comfortable to use.

The 21 caliber is not as comfortable as the 45 caliber, but it is very easy to carry.

The brightness of the 45 caliber is slightly better.

If at the same level, it is far less obvious than what you said: "Look at a person's face, 8 21 can see the general outline, and 8 45 can see the details".

The difference in resolution between the two specifications is subtle. In fact, just think about it, if the difference is so obvious, then portable products would have been eliminated long ago.

The really obvious difference, in fact, you have already said, is brightness, which, by the way, can also be described in another word "comfort".

If this product is very different from the 8x45 one (I probably know which one you asked), it is because of the different grades :)**Several times more :)

The difference in aperture has a great impact on astronomy, mainly because astronomical telescopes are mainly used under the limit multiple of the objective aperture, that is, the diameter of the exit pupil is very small, and at this time, the aperture is larger, and the improvement of image quality is indeed more obvious.

But in hand, it is still more obviously different. The difference between sharpness and caliber on the hand is not obvious, and the main description is that "comfort" is more accurate.

The difference between the light transmission of 45mm and 21mm is nearly doubled, and if 8 21 can see the general outline of a person's face, then there is no problem with switching to 8 45 to see who this person is. The most critical parameter of a telescope is the light force, or aperture.

For example, if you use an 8 45 telescope at night, you can see a darker scene, but if you use 8 21, it will be dark.

The advantage of a large aperture of a telescope at the same magnification is that in addition to higher brightness, the exit pupil distance will also be longer, which means that the eyes can see the full field of view without pressing close to the eyepiece, and it will be more comfortable to see. In addition, even with the same magnification, the telescope resolution of a large objective will be better.

There is not much difference between daytime use and if it is dim or low-light, it can be compared.

The bigger the mirror, the more concentrated it is, a matter of common sense.

It depends on what you're going to do, whether it's a normal game or a night star.

The multiplier should be high, and the outside is wrapped in thick rubber at the end.