Make the best imaging and the largest magnification telescope

First of all, this makes it possible to make a simple telescope model.

Let's start with a simple question: use a focal length of 2 cm for the eyepiece and a focal length of 59 cm for the objective.

But there will be a lot of problems in making it, and... The imaging is not clear. ——The eyepiece of the professional product uses a complex eyepiece group composed of multiple lenses to obtain a large field of view and excellent results.

And you're using a direct magnifying glass, so the field of view is definitely much smaller than the professional one. Regarding the effect, the following continues:

First of all, professional telescopes, not only are the materials of professional optical glass, but the lenses are also complex structures, which are fundamentally different from life.

You can take a look at the introduction of the inner lenses of the telescope here. - The so-called "convex lens" in it - in fact, in the real production, it uses a complex design of lens groups - as if you know that the lens of the camera is a convex lens - the real professional camera lens is a complex lens group inside. ）

So to put it simply, what is the effect of a telescope like yours made by yourself?

1. The distortion is large, and the scenery inside, except for a small piece in the center, is blurred and deformed around.

2. The color difference is large, which has been mentioned above.

3. Narrow field of vision.

4. The combination of chromatic aberration and distortion will lead to a section in which the self-made telescope adjusts the clarity without an accurate "point", so the clarity is greatly reduced.

You can do it and have fun. But don't put too much effort into it.

1. Telescope magnification = objective focal length Eyepiece focal length. According to the materials you have at hand, even if the 59cm lens with the longest focal length and the 2cm lens with the shortest focal length are used as eyepieces, the magnification is only a double, not a high magnification at all;

Second, the regular telescope even if it is the cheapest tens of yuan Phoenix astronomical telescope, its objective lens is at least a combination of two optical properties of different optical glass (generally crown glass and flint glass), which can greatly reduce chromatic aberration and improve imaging quality, high-quality telescopes use expensive ultra-low dispersion lens (ED) or even multi-lens combination of apochromatic (APO) design, which can basically control chromatic aberration to the extent that the human eye can not perceive. In a telescope composed of ordinary single lenses, the edges of the light-dark boundary line will be filled with annoying blue and purple edges, which will seriously affect the image quality, and such image quality is meaningless even if the magnification is high;

3. Process and accuracy cannot be guaranteed. Not to mention the coating process, even if it is a simple optical axis calibration as an example, it is a very difficult job for amateur DIY, the accuracy of the optical axis at high magnification has a great impact on the image quality, and the telescope produced under the assembly line of regular manufacturers even if it is not finely calibrated before leaving the factory, the accuracy will generally be higher than that of amateur DIY;

Fourth, the self-made telescope is more to experience the fun of the production process, nothing more. In terms of practicality and economy, handicraft processing cannot be compared with what is produced on a large-scale assembly line, and the cost of making a telescope with the same performance is sometimes much higher than buying a ready-made finished telescope.

Hello dear, please wait for 2 minutes, I will answer for you right away, don't worry! If you want to hold a 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.

Therefore, the higher the magnification, the better, the high magnification telescope, the size of the objective lens also has requirements, the high magnification telescope, the general volume is relatively large, also very heavy, need to cooperate with the tripod to fix it to see. The aperture of the telescope objective lens is also very important, if the aperture of the telescope is larger, the greater the transmission of the telescope, that is, the larger the spot in the figure.

The higher the magnification of the telescope, the clearer it is. In fact, the clarity of a telescope is determined by a combination of factors. First of all, the telescope's effective aperture is a key factor in this process, which refers to the maximum diameter of the beam of light through the telescope's optical elements, such as lenses or mirrors.

In addition, the magnification of the telescope is also related to clarity. Higher magnifications can provide higher magnification, but some of the clarity of the image may be lost. In telescopes with higher magnifications, the optical elements through which the light passes may be relatively smaller, so the image may be darker and more blurry.

It also depends on the quality of the telescope. Higher quality telescopes are able to maintain clarity at high magnifications, while lower quality telescopes may also lack resolution at relatively low magnifications. In addition, the design of the telescope can also affect its clarity, for example by utilizing lens materials that reduce image dispersion.

Therefore, the clearest telescope is not just to look at the multiplier, but to consider a combination of factors. In clear weather conditions, the use of a 10x telescope is clear enough. However, in low-light conditions or where higher resolution is required, a larger-aperture, higher-quality telescope needs to be selected and moderately multiplied.

Finally, when using a telescope, you should always pay attention to the cleaning of the mirror surface to ensure the clarity of the image. <>

6-10 times.

The ideal telescope should magnify the target losslessly, and truly restore the details, many users feel that the magnification of the telescope should be as large as possible, in fact, the magnification of the telescope is determined by many factors, each telescope is marked with the main parameters, such as 7x35 means that the mirror is 7x, and the objective lens diameter is 35mm. Generally, less than 6 times is a low magnification, 6-10 times is a medium magnification, and more than 10 times is a high magnification. Now the main discussion is about the magnification of binoculars.

However, it has been proven that the most suitable telescope for handheld observation should be 6-10x magnification.

The telescope is used to pay attention to the rough items.

Never use a telescope to look directly at the sun, as strong sunlight can cause great damage to the eyes.

Users who wear glasses are advised to turn down the goggles of the telescope before making observations when using the telescope, so that they can see the full field of view.

Although many telescopes are now waterproof, try not to throw the telescope into the water in order to try such a function, the telescope is a precision instrument, and you should never slam the telescope, put pressure on it, or do other strenuous movements.

The above content refers to Encyclopedia - Telescope.

People's Daily Online-How big are the eyes of the telescope? This parameter is critical.

Hello dear, glad to answer for you. Telescopes of six to ten times multiples are good. Six to ten times the best telescope.

The ideal telescope should non-destructively enlarge the target, truly reproduce the details, most people may think that the magnification should be as large as possible, in fact, its magnification search and the rate is determined by many aspects, each telescope is marked with basic parameters, such as seven times thirty-five indicates that the mirror is seven times, and the aperture of the objective lens is 35 mm. Generally speaking, below six times is a low magnification, six to ten times is a medieval magnification, and more than ten times is a high magnification. Limiting factors for telescope magnification:

1. The magnification is too large, and it is not suitable to stabilize the binoculars, which are generally handheld, and the shaking is more than 10 times, which is not conducive to observation, and the eyes are easy to get tired, and even cause nausea. Fixed telescopes with too large magnifications can also cause vibrations due to wind and grass. For oneself, 12 times is the limit of hand-holding, and it is best to have elbows to support when observing, and the body or telescope is attached to some fixed object.

2. If the magnification is large, the actual field of view will be reduced accordingly Generally speaking, the larger the magnification, the smaller the area that can be observed at the same time. This is not only due to the eyepiece, but even if the eyepiece is able to maintain the same apparent angle of view (e.g., 60 degrees) when the focal length changes, the field of view will be inversely smaller than the magnification due to the reduction of the viewing area. In this way, it is not conducive to the discovery and search of targets, especially for observations that change targets frequently.

Dear hello Yinyinshen, has helped you query the results; Beginners 8-10 times better with a telescope. The choice of telescope magnification depends on the specific application. The higher the magnification of the telescope, the clearer the details of the object that can be observed, but there are a few things to keep in mind:

The telescope magnification is too large, which makes the field of view of the object smaller, and at the same time, the vibration and jitter are more noticeable, which may affect the viewing experience. Telescopes with high magnifications usually require a larger aperture and a more stable bracket to support the mirror body, and will also be higher, so it is necessary to consider the needs of use and economic strength. Different types of telescopes are suitable for different scenarios, for example, large-aperture telescopes are suitable for celestial observation, while low-magnification telescopes are suitable for observing wide-angle scenes.

Tips: When choosing the front loss multiple of the telescope, you need to consider the application scenario and the specific object that needs to be observed, and then comprehensively consider the aspects of **, caliber and stability to find the multiple that suits you.

Six to ten times the best with a cave mirror in the distance.

The ideal telescope should be a non-destructive enlargement of the target, true reproduction of details, most people may think that the magnification should be as large as possible, in fact its magnification is determined by many aspects, each telescope is marked with basic parameters, such as seven times thirty-five indicates that the mirror is seven times, the objective lens aperture is 35 mm. Generally speaking, below six times is a low magnification, six to ten times is a medium magnification, and more than ten times is a high magnification.

The magnification of the telescope is generally in the range of 6 to 10 times, which can not only see a very clear picture, but also will not shake because the magnification is too high. When choosing a telescope magnification, you also need to consider the aperture of the objective, that is, the diameter of the objective, which determines the amount of light entering and affects the clarity of the telescope.

Telescope Care Guide:

1. When using telescopes, pay attention to moisture-proof and waterproof, try to ensure that the telescope is stored in a dry and ventilated place, and if possible, you can put desiccant around the telescope and replace it frequently.

2. If there are any dirty spots or stains remaining on the lens, wipe the eyepiece and objective lens with the flannel cloth attached to the binoculars bag. If you need to clean the mirror, you should use a absorbent cotton dipped in a little alcohol, wipe from the center of the mirror in one direction to the edge of the mirror, and keep changing the absorbent cotton ball until it is clean.

3. The telescope is a precision instrument, and the telescope should not be smashed, pressed or otherwise violently operated. When you are doing outdoor sports, you can attach a strap to the telescope, and when you are not using it, you can hang the telescope directly around your neck.

4. Non-professionals should not disassemble the telescope by themselves or clean the inside of the telescope. The internal structure of the telescope is very complex, and the adjustment of the optical axis needs to be carried out on the instrument dedicated to the telescope to adjust the optical axis.

The choice of magnification of the telescope needs to be decided according to your actual needs and observation conditions. In general, the higher the magnification of the telescope, the larger the object observed, but the smaller the field of view. Conversely, the lower the multiplier, the larger the field of view, but the smaller the object.

For handheld telescopes, the common magnification range is 7x to 10x. Telescopes in this magnification range are more suitable for concerts, sports competitions and other scenes, with strong portability and easy to carry.

For benchtop high-power telescopes, magnifications may be higher, such as 20x, 30x, or even higher. This type of telescope is suitable for observing distant objects such as stars, moons, etc., but due to the high magnification, auxiliary equipment such as handheld stabilizers and tripods are necessary.

When choosing a telescope magnification, the observation conditions and ambient light are also taken into account. In low-light conditions, high-powered telescopes may appear blurry and need to be compensated for by a larger or cracked objective aperture.

In short, when choosing a telescope magnification, it is necessary to consider it comprehensively according to your own needs, observation scenarios and environmental conditions. It is recommended to choose a telescope produced by a regular manufacturer to ensure product quality and performance.