-
For brands. International famous brands Xingtran Tianwolf These brands are undoubtedly among the best in the world (our country only does OEM).
Domestic famous brands Daguan Boguan Jinghua These brands are relatively well-known domestic ordinary brands Panda Jiehe (Jiehe) Haoyue is a mirror for domestic entry-level play Phoenix virtues.
Other brands don't need to be considered, basically 99,800 times infrared night vision, etc., are generally sold in stalls or wholesale markets **200 yuan or less!
The mirror of about 500 yuan is suitable for beginners.
The 1500 yuan mirror is suitable for astronomy enthusiasts.
The 3,000 yuan mirror is suitable for astronomical enthusiasts.
More than 5,000 yuan to more than 10,000 yuan is suitable for astronomical old birds and people in the industry who are engaged in astronomical photography.
Please refer to this article for the aperture and observation effect of the astronomical telescope.
Please refer to this for whether you should consider the multiplier when buying a telescope.
Please refer to me for how to use this.
If you buy it, I will give you the current planet's position so that the landlord can better make introductory observations.
Finally, I wish the landlord to buy a satisfactory mirror and be able to play his own mirror to the extreme in the years to come!
If you have any other questions, please hi!
-
The clearer the target seen with a telescope, the better, and the more expensive it is. In terms of cost performance, domestic telescopes are more cost-effective than imported telescopes. Cost-effective, indicating good practicability.
The ** of domestic binoculars is available from 100-5000 yuan. 500-1000 yuan is the most practical. Shanghai Boguan Telescope Store has more than 100 types of binoculars.
-
Telescopes - in fact, there are not so many types, they are all the same, there is nothing "good or bad".
As long as you don't buy a lot of inferior products on the market, and then, don't choose which one is very biased, then there is no problem.
It is recommended to take a look.
Click on "Telescope Knowledge and Introduction" - there is a "Common Sense and Identification" in it
Now there are a lot of fake products, counterfeit and inferior accounted for more than 95% of the market, the trouble is that there are false propaganda, such as "night vision", "infrared", "Japanese cherry blossoms", "Russia" and so on, as long as you don't buy those fake ones that are flooded on the market, there will generally be no big problem. This is the main thing you need to focus on.
**, this maybe, has a lot to do with the store's pricing.
-
I have a good use here, and it's very cost-effective!! Around 400.
-
What kind of telescope do you want, astronomical or viewing?
Astronomical Phoenix. View Bo Guan.
-
1. Nikon telescope: It adopts a rounded design, the lens is multi-layer coated, the image is bright, it is protected by shockproof rubber, and it can be connected to a tripod at the same time, which is convenient and comfortable to carry and durable.
2. Canon Zijing Telescope: Equipped with IS image stabilizer and Paul prism, it can achieve bright observation effect, effectively suppress chromatic aberration, and achieve high light transmittance and high contrast.
3. Dr. Neng telescope: It has the function of slope angle measurement, adopts the second-generation ESP technology, has three modes: good scanning, foreground priority and background priority, and adopts multi-layer fully coated imitation lead film, which can be widely used in outdoor activities.
-
Refractive Traveling Telescopes: This is one of the most common types of telescopes, including refracting telescopes and refractive reflecting telescopes. They are suitable for observing celestial bodies, bird watching, landscapes, etc. Astronomy enthusiasts usually opt for refracting telescopes.
Telescope Aperture: Aperture is the diameter of a telescope lens or mirror, usually expressed in millimeters (mm). A larger aperture usually means better light collection capabilities, making observations brighter. When choosing a telescope, consider your observation needs.
-
1.Prism material. Generally used more prisms are BAK4 and BAK7, the refractive index of these two glasses is different, the refractive index of BAK4 is high, for the PORRO prism made of BAK4 material, it can fully reflect 100% of the incident light when it does not consider absorption, and BK7 can only reflect about 83% of the incident light, so the light efficiency of BAK4 is high, but it is also expensive.
2.Multiples are important. The magnification of the telescope is equivalent to how many times you bring a distant object closer, if you wish to hold the telescope in your hand.
The multiplier is best chosen between 6-12 times, the multiple is too low, I feel that it cannot meet the requirements, if the multiple is too high, the imaging jitter is very strong, it looks blurry, and there is a little dizziness after a long time. At the same time, high-magnification telescopes are generally relatively large and heavy, and they need to be fixed with a tripod to see. 3.
The telescope is nitrogen-filled and waterproof. Because the outdoor environment is relatively harsh, the inside of the telescope is filled with nitrogen and waterproof, and the nitrogen inside the telescope can prevent the internal lens of the telescope from fogging and mildew, and the sealing of the telescope is very good, so water vapor and dust cannot enter the inside of the telescope, so the durability of the telescope is guaranteed. 4.
About telescope apertures. The larger the aperture, the larger the observation field of view and brightness, which is conducive to observation in low light, but the larger the aperture, the larger the volume weight, and the higher the cost, which can generally be selected between 30 and 50mm according to the need. 5.
Telescope construction materials: In order to reduce costs, most of the ordinary telescopes on the market use plastic mirror bodies and tubes, and only a few high-end products and military models use all-metal structures, which are expensive, but their durability is incomparable.
-
With the improvement of people's living standards, many parents will choose to buy a family telescope for their children's interests, so that they can look at the stars and learn some astronomical knowledge at home. Today, PCHOUSE will introduce you to how to buy a home telescope.
1. Look at the caliber.
The aperture of the telescope is one of the most important parameters of the telescope, the larger the aperture of the telescope, the higher the theoretical resolution will be (but it should be noted that in fact, the general handheld telescope is far from using the theoretical resolution and can not reach the theoretical resolution, so the actual resolution is more important, depending on the optical quality of the telescope), the higher the light-gathering ability (the brightness is higher at the same magnification), but at the same time, the volume and weight of the telescope will be larger, and the ** will be higher.
2. See the diameter of the pupil.
The diameter of the exit pupil of a telescope is sometimes referred to as the exit pupil, and the size of the pupil of the human eye varies from person to person and gets smaller with age. The diameter of the exit pupil also has a certain effect on the comfort of observation, and when the exit pupil is large, the pupil is not easy to deviate from the exit pupil beam when shaking and when the eye is rolling, so it will be more comfortable.
3. Look at the focal length.
For refractors, it is best to choose a telephoto one, which can reduce the chromatic aberration by increasing the distance of the telephoto acre. Those mirrors with small aperture, short focal length, and small focal ratio are not very clear at low magnification, and once they are on high magnification, the purple edge will come out, affecting observation.
Domestic telescope brands include Boguan, Xingtron, Forester, Esky, Yuzon, and Tucson. Wait. >>>More
Hello, I'm afraid it's a bit of a pity, this product is not a regular product, the above parameters are not regular, 1200 30, literally 1200 times, the caliber is 30 mm, it must be untrue, because such unreasonable parameters of the handheld military telescope will not exist at all, at most 10 mouths. >>>More
The angular diameter of the area of the sky that can be well imaged by the telescope is called the field of view of the telescope or the angle of view of the field of view ( ) The field of view of a telescope is often determined at the time of design. The field of view of a telescope is inversely proportional to magnification, and the greater the magnification, the smaller the field of view. Different optical systems, different imaging qualities (due to aberrations), different apertures, and different focal lengths determine the size of the telescope's different fields of view (in the case of astrophotography, the size of the negatives or CCDs also constrains the size of the field of view). >>>More
Of course, the first cosmic image we harvested was brought to us by the Hubble Space Telescope, and so far, the Hubble Space Telescope is 30 years old.
Because this can make the distant object very small.
Magnify it at a certain magnification rate to make it have a large opening angle in the image space, so that objects that cannot be seen or distinguished by the naked eye become clear and recognizable. >>>More