Astronomical observations in binoculars 10x50. How to choose a good binoculars for observation. What binoculars to choose to observe the stars

Full binoculars for hunting is Yukon 8-24 × 50. It is equally well suited to professionals and lovers who love to watch twilight, the sea or mountains. At the same time, binoculars can be applied not only for hunting wild beasts, but also for shooting, as well as certain sports. The device does not tire the eyes even after a long use due to the same increase in each individual channel. The housing made of metal alloy is not only strong, but also incredibly convenient due to the presence of rubberized inserts and carbon fiber. Enlarge the image will be up to a 24-fold value. Used Porro Optical System and BAK4 Glass.

Pros:

• Truly great increase.
• High-quality optics and progressive components.
• Very good ergonomics and case materials.

Minuses:

• The setting wheel is not the most convenient.
• For some it will be heavy.

1 Nikon ACULON A211 16 × 50

When buying binoculars Always arises a logical question: what can you see in it? Binoculars differ in their However, not everyone can carry out the parallel between those or other parameters of binoculars and its actual possibilities. This is especially true for . For example, for Buy binoculars with great magnification. And what if you want to buy binoculars, which would not inform the telescope in their capabilities, and with which it would be possible to see

So, about everything in order. If we speak specifically about astronomical binoculars, it is worth noting that the binoculars will never become a full-fledged replacement of the binoculature. Astronomical binoculars are rather a very successful addition to the telescope, since due to the wide field of view, the search for objects in the sky is extremely facilitated. In addition, binoculars are more convenient and is used to be used in observation due to its binocularity, as well as a direct image.

What else can be seen in binoculars? Let's start, perhaps, from the moon. In almost any binoculars you can see many features of the surface of the visible part of the satellite (for example, the largest craters). As for other objects, the four brightest satellites of Jupiter can be seen in astronomical binoculars, Saturn (of course, without details), Neptune, as well as the nearest asteroids and comets. As for Deep Sky facilities, the star clusters, nebula and galaxies are of particular interest for observations in binoculars.

If we talk about multiplicity, it is enough for the moon to observe the binoculars with an increase of 10-20 times. As for more remote objects, binoculars with multiplicity 20-30 are desirable here (but remember, the greater the increase value, the smaller the field of view). Also note that with an increase in more than 12 brief, you will also need a tripod.

The image quality also affects the size of the lens. If you, for example, have thought to consider such "weakly lit" objects, like star clusters, then choose binoculars whose lens diameter is more than 60 mm.

Among other things, it will be very useful to the presence of an image stabilizer in binoculars, it will allow you to watch with hands even with a 20-fold increase. For example, stabilization is very saves if you want to consider the surface of the moon or look for the planet of the solar system, as well as their satellites.

So let's summarize some results. If you decide to use binoculars as a supplement to the telescope, then you are quite suitable for classical model 8x40.. With this binoculars, it is very easy to find objects from hand to consider constellations. Model 7x50. Thanks to a good light and a wide field of view, it is ideal for the search for nebulaes and star clusters due to a good light and a wide field of view, but the moon such binoculars will probably be launched. Universal binoculars 10x50 It has a completely decent increase, but a narrow field of view. Such binoculars is suitable for looking at the details of the Moon, Jupiter, as well as to find satellites of Jupiter and observation of double stars. Binoculars with great magnification (18x50, 20x60, 26x70) can also be described as a planetary.

With the unarmed eye in the sky, you can see a lot of curious. But much more interesting opens, if you use at least binoculars. But how to choose binoculars for the observation of the sky, and at all is it worth it to acquire a newcomer? Maybe it's better to immediately start to save money on a telescope maturely? All this we look at here. We will not consider specific models, there are a lot of them, so they just learn to choose.

If you want to join astronomy, then the binoculars are definitely worth it, and if it is the first tool, then it is even for the better. What is binoculars?

Binoculars - a small and inexpensive optical device, perfectly suitable for observing the sky, and two eyes. If a telescope can buy not everyone, then binoculars are quite accessible to many.

Even a small binoculars will open a lot of amazing things on the beauty of things. With him, you will solve several problems at once:

• Let's start watching almost immediately, because binoculars are not too expensive tool, unlike the telescope, and for the personal budget there is not a particularly large load.
• Quick start with binoculars in hands will allow you to develop your passion for astronomy into a serious occupation. And dreams about the telescope, postponement of money on him ... - All this can remain a dream, and you can simply cool down to your hobby during this time.
• You can explore the constellation in detail, watch some planets, the moon, and much more - all these knowledge will be useful when you get a telescope.

Almost all amastronomy lovers, including experienced, have binoculars in their arsenal. It allows you to observe quickly, without preparation, in any conditions, it is convenient to take it anywhere. In addition, the binoculars helps to inspect the desired section of the sky before watching the telescope, and even immediately find the right object - it saves time when the telescope is guided, and the horizon expands.

So a good binoculars for an amateur astronomer is an indispensable tool, and start their astronomical observations with its help - a great option.

Benefits binoculars

Binoculars has its advantages not only before subligament pipes, but also in front of the telescopes:

• Binoculars has a great field of view, which allows you to inspect large sections of the sky and easy to find different objects.
• The image in binoculars is direct, not inverted. It is very convenient when studying constellations, since everything looks like in binoculars as on star maps or in Stellarium type planetaria programs.
• In binoculars, you need to look in two eyes, and this significantly increases the permeability. If you compare binoculars and a telescope with the same aperture (the diameter of the lens), then such weaklowing objects can be detected into binoculars that are not visible to the telescope.
• Watch binoculars more comfortable. Through the use of both eyes, they are less tired than when observing the telescope.
• Binoculars - a compact and lightweight tool that is always ready for work and does not require preparation. I got out of the case - and you can immediately use.
• Binoculars - a universal tool that is always useful in the farm, if suddenly the passion for astronomy will go to a dead end. This telescope is only in direct appointment, and the binoculars will come in handy in the hike, and on the hunt, and on fishing, but you never know where else.

Therefore, even having a telescope, abandoning binoculars is not entirely desirable. These tools perfectly complement each other. It is not always necessary to "shoot a gun on the sparrows", especially at first.

Typical Program Binoculars Yukon. It happens with different multiplicity - 6, 10, 16x. By the way, very good for astronomical purposes.

Ability binoculars

Although the disadvantages of binoculars include a small increase and a small aperture, but it allows you to see quite a lot. For example, the most common 8-10-fold binoculars with a 50mm lens diameter allow you to see the stars about 10 star magnitude, and this is more than 250,000 stars.

In binoculars you can see about hundreds of different foggy objects - nebulae, galaxies, etc., having brightness to 8.5 - 9 m.

As for the moon, it is possible to consider quite a lot of crater and different parts on it into binoculars. The planets - Jupiter, Saturn, you can consider the disk and see some satellites. Saturn rings are visible, you can also observe the phases of Venus. Very convenient binoculars for observations of lunar eclipses. You can see the spots in the sun (it is impossible to look at it without a filter!)

Binoculars allows you to detect various asteroids and comets that regularly become quite bright. It is also convenient to observe the variable stars with it - the naked eye shows them not so much, the choice is much more with binoculars.

What is astronomical binoculars

The astronomical binoculars include prisred binoculars with a large aperture - from 70 mm, which are specifically designed for astronomical observations. In terms of its characteristics, they already resemble small telescopes, due to the greater permeability and increase - 15-20, even 30 times, although there are even 60-fold and more models.

However, astronomical binoculars - the thing is quite big and heavy, so it is difficult to keep it in your hands long enough, the hands begin to tremble involuntarily. In addition, with increments from 10 times, even in the usual binoculars, the image "jumps" when observed with hands. Therefore, even with such increases for binoculars, a tripod is required or some kind of support. For astronomical binoculars with an increase in 20 times, the tripod is simply necessary, otherwise the mining of the picture will not allow something to consider something normally.

How to choose binoculars by characteristics

Like any optical device, binoculars have some characteristics, relying on which, you can make the right choice. You can choose binoculars in the following parameters:

• Aperture is the diameter of the lens, and one of the most important characteristics for an astronomical instrument. The more this diameter, the greater the light lens collects, allowing you to see weaker objects. Also, the aperture depends on which the maximum increase is able to give binoculars without deteriorating image quality. From a small aperture can not be expected good results. For most binoculars suitable for astronomy, this figure begins with 50 mm.
• Increase - This parameter shows how many times the angle under which the observed object is visible, the more of this angle when observing the naked eye is observed. The most common zoom in 8, 10, 15 times, although there is more. On binoculars is denoted, for example, for example - 10x50, where 10 is an increase, and 50 - aperture in millimeters.
• Lights - the ratio of aperture to zoom. This value in millimeters is denoted by the diameter of the output pupil. If this diameter is larger than the diameter of the pupil eye, the part of the light in the pupil does not fall, that is, it is lost, and it is bad. The diameter of the pupil eye is not more than 7 mm, it is physiologically not capable of expanding more, and the light is easy to calculate. For example, for binoculars 10x50, the output pupil will be 50/10 \u003d 5 mm, and it is less than the pupil of the eye, that is, the binoculars assembled the light is not trimmed, and falls into the eye, and it is good. So the balance of apertures and increases should be controlled when choosing binoculars.
• Enlightenment is a colored coating on binoculars lenses, which is well noticeable on reflection, if you look at them on the side. It can be green, blue or orange. In principle, the color of this coverage does not play a special role, although there are recommendations that it is better to prefer green or blue. But if there is no enlightenment at all or it is very bad - such binoculars for astronomical observations should not buy at all.

Here, in principle, all that concerns the optical part of the binoculars to pay attention to when choosing.

What to pay attention to the choice of binoculars

With an optical part dealt with, and now you can choose binoculars for observations you can. However, there are still some points on which it is worth focusing:

• Model binoculars - if your choice fell on binoculars from a well-known manufacturer, then it is not bad. You can read the reviews and detailed characteristics of this model on the Internet. Pay attention to the quality of optics. Otherwise, you risk acquiring some Chinese craft with plastic lenses or just low-quality optics - for the hunter it will come down, but for astronomy a full slag.
• Weight - a lot of weight will require the use of a tripod, otherwise the binoculars will be difficult to hold in his hands, they will start trembling, and the image jump.
• The integrity of the case - there should be no scratches on binoculars, and even more so traces of impact or chip. This is a fragile device, and if he fell or hit it, then the optics were damaged, or something was shifted in it. Do not buy such a sample.
• The quality of optics - when examining lenses and eyepieces, it is necessary to pay attention to them so that there are no scratches and contaminants, there were no bubbles in the lenses and other inclusions. Enlightenment should be uniform, without signs of degradation.
• Acquired - the image in both eyepieces should be the same. If at least one half of the binoculars will be some shift (for example, prism) or these halves are bonded unevenly, the image will be bother, and such a binoculable should not buy. You can check it out, looking into the binoculars to some flat line, for example, the roof of the house.

All this is detected with a simple inspection of binoculars before buying and takes just a couple of minutes. If at least one point is comments, it is better to give up from buying. Although the weight of binoculars does not apply to critical flaws, it is just a matter of convenience.

Several frequent binoculars

Before buying binoculars for astronomical observations, newcomers may have a variety of questions. Some try to give answers.

What is the difference between astronomical binoculars from the usual gathering?

Constructively practically nothing but a larger aperture - 70 mm and more, and more increases than most field binoculars - 15x and more. Of course, it is more and harder, so it is better to install it on a tripod or montization.

Is it possible to use ordinary field binoculars for astronomical observations?

Of course. This is a universal device, with an aperture of 30-60 mm and zooms of 6-30x. Among the amateurs astronomers, such binoculars are very common as the most affordable and quality. Most popular with aperture from 50 mm and an increase in 10x and more are quite comfortable and not too heavy tools that allow you to see a lot of things.

Is it possible to use binoculars with image stabilization?

These are pretty heavy models created for certain conditions, for example, on ships. The built-in microprocessor controls the movement of prisms, compensating for jitting, which allows you to get a fairly stable image. For astronomical observations, it is possible to use them, but it is necessary to keep in mind that these are pretty heavy models, and they require batteries.

Is it possible to use binoculars if the right and left eyes have different visual acuity?

Can. Most binoculars have the ability to separately adjust sharpness on one eyepiece (right). Therefore, the sharpness of binoculars can be configured under one eye (left), and then, using the eyepiece setting, adjust sharpness and under the other eye (right).

That's all, now you know how to choose binoculars for the observations of the starry sky. In fact, this is not difficult at all. I would like to say that you should not take the first model, it may be just a beautiful Chinese caretaker. First, look at the model name, and then look about it information on the Internet - characteristics and reviews a lot will prompt.

To help you can download the book. It says in detail what and how to observe with this tool.

The right choice of binoculars is a very difficult task. In order for in the future, the purchase of binoculars does not turn into an unpleasant mistake, it is necessary to take a thoughtful to the question of his choice.

Therefore, before going to the store, you should familiarize yourself with the main types and characteristics of binoculars.

Further advice of professionals will be prompted to choose binoculars that will satisfy your requests.

Now the market has a huge variety of binoculars for different species Activities:

1. tourist
2. children's
3. hunting
4. theatrical
5. astronomical
6. marine
7. for nature observation,
8. are common.

Binoculars for tourism

Standard increase for tourist binoculars - 10 - 15 times, and the optimal diameter of the lens 42 is 50 mm.

The case must be light and compact, well if it is rubberized. With the help of tourist binoculars, you can monitor at any time of the day.

Children's

Children's binoculars are chosen depending on age. For young children, 6 - 9 years old, we recommend choosing with the FF marking, they have a focus already set and no more additional settings are required.

For older children, binoculars with focusing are already suitable, they will be able to customize it on their own. It must be compact and easy. The lens size is recommended - 30-35 mm.

They are used on the hunt to observe future prey. Hunting binoculars should be small, with high lights.

Well, if they are equipped with additional features:

• image stabilizer
• rangefinder,
• altimeter,
• compass,
• thermometer.

These models must be strong enough hunting This is not easy to walk through the park, the housing is preferably rubberized, and glass lenses. Increase 4 - 8 times, lens diameter 25 - 40 mm.

It is worth paying attention to the choice of professionals is binoculars for hunting from Olympus Pathfinder series.

They give a direct image, lungs, with high lights. Lens size - up to 30 mm, increase 2-5 times.

Astronomical binoculars with great magnification

For amastronomy lovers, an alternative telescope will be astronomical binoculars. They are easy to use, functional and cheaper than a telescope.

It requires a large diameter of the lens - 110 mm, and the multiplicity of zoom is 10 to 30.

Sea or tactical binoculars

These are binoculars of military assignments with special requirements that can be used for fishing.

They must cope with their work in all weather conditions, so they have a moisture-resistant and rubberized body with maximum protection against fog, moisture and dust.

Waterproof to 5 meters, built-in rangefinder and compass, as well as nitrogen filling. These features are suitable for sea binoculars Olympus Magellan series.

They can have both high multiplicity of zoom and small with a compact lens. It all depends on your preferences when observed for living nature.

Are common

This is the most common type of binoculars. They are universal and can come up for many purposes, have average characteristics: weight, size, price.

The degree of increase - up to 16 times, the diameter of the lens is 35 - 52 mm.

Increase and lens diameter

Binoculars are denoted by two digits, for example, 8x42 or 20x60. The first digit indicates how many times it increases the image.

There are several categories depending on the degree of increase:

• A small increase (from 3 to 5 times);
• Medium increase (from 6 to 10 times);
• With a great magnification (from 10 to 30 times).

Before choosing binoculars on multiplicity, you should first decide what you need it. In the forest or elsewhere with many visible obstacles (in the form of trees, bushes, buildings, etc.) you are unnecessary binoculars with a great magnification, and with an increase in 15 times and a strong trembling will be felt.

You have any questions, complaints or you want to leave your positive feedback, you can do it below! Leave your feedback and suggestions in the comments!

Many people who want to study the Star Sky, believe that a telescope is certainly necessary for this. Of course, this is not how - to study constellations can be even without a telescope, armed with a star map and the fact that I gave us nature with our own eyes. However, if you want to explore the constellations, the location of bright clusters in them, nebulae, if you often visit places where there is no illumination, but you can't take a telescope with you (for example, hike or walking) - I I recommend paying attention to a wonderful optical device called binoculars.
So, what binoculars are better to take a newcomer? What do the figures in the marking of binoculars mean? What can be seen in binoculars at night?

Binoculars are, in fact, two small refractor telescope installed in parallel. Like the telescope, it has a lens, eyepiece, but an important difference from the telescope is the presence of a wrapping system from the system of prism. The unselfished image makes it possible to use binoculars when watching both earth objects and celestial (no need to turn the card), while most telescopes provide an inverted image.

Depending on the type of wrapping system, the binoculars are with a system of prisms with the "roof" (roof) - look like binoculars with "straight pipes", or with a system of porro (several crossed rectangular prisms) - look like binoculars with "sideways". Binoculars with porre-prisms provide a more surround image when observing earth objects, but noticeably larger in transverse dimensions than binoculars with roof prisms.

"Porro" -Binone and "Roof" -Binch

There are also low multiplicity binoculars, performed according to the Galilean system (lens - collecting lens, and the eyepiece - dissipating) - It was according to such a system that the Galileo Galilee telescope was made. They do not need a wrapping system - the image in them is direct, however, getting high multiplicity with a large field of view is problematic for them, therefore binoculars with a similar system are used where there is no high multiplicity of the image (from 2.3 to 4x) - for example, for observations in Theater. Often, Galilean binoculars are called - theatrical. An example of such binoculars - (Binoculars Galilean wide-angle).

The main characteristics of binoculars are the multiplicity (increase), the diameter of the lens, the field of vision of the eyepieces and the removal of the output pupil. Also an important parameter that is usually not indicated, but which is easy to calculate, is an output pupil.

The multiplicity and diameter of lenses are usually designated in the marking: the first figure is a multiplicity, the second is the diameter of lenses in millimeters. For example, 7x35 binoculars are binoculars with multiplicity of 7 times and the diameter of the lenses of 35 millimeters. If we look into the binoculars with multiplicity of 10x on the object at a distance of 100 meters, then we see this object 10 times closer than in fact (in this case, 100 meters: 10 times \u003d 10 meters).

The task of any binoculars or telescope is to concentrate all the light that falls into the lens in a small circle, which will fall from the eyepiece into the observer pupil. This smallest mug of concentrated light and is an output pupil. In fact, the lens is the entrance pupil, and the fact that at the outlet of the eyepiece is the output pupil.

To calculate the value of the output pupil, the binocular lens diameter is necessary to be divided into an increase. So, binoculars 7x35 has an output pupil 35: 7 \u003d 5mm. Why do you need to know this parameter? And what about what. The diameter of a person's pupil can vary from 1.1 to 8 millimeters, depending on the lighting conditions, the pupil expands in the dark, and the bright light is narrowed. If the size of the output pupil of binoculars is greater than the pupil of the eye, then simply not all the light will fall into the pupil and part of the lens will not be used. For example, if binoculars with parameters 7x35 (5mm output pupil) will be used exclusively in the day when the eye pupil the diameter is about 2mm, only 2x7 \u003d 14mm from the diameter of the lens will be used. The conclusion is such - for day observations, binoculars are needed with a pupil of up to 4mm, for night (including astronomical) - with an output pupil from 5 to 7mm. An increase in which the size of the output pupil is equal to the size of the pupil of the eye, it is called equibrix.

The removal of the output pupil is the distance from the eyepiece lens to the eye, in which the entire field of vision of the eyepiece is visible. With too much, the takeaway of the pupil has to "stick" the eyes into the eyepieces, and with too much - it is hard to catch the image. If you have bad eyesight and you want to watch glasses - it is better to take binoculars with a large takeaway of the pupil - about 17mm. However, a comfortable takeaway of the pupil is just about 12 ... 15mm. It is not necessary to observe in glasses - enough refocusing.

Basic combinations of night (astronomical binoculars): 7 × 35, 7x50, 8 × 40, 8x56, 9x63, 15x70. Binoculars 20x60, 25x100 do not possess a large output pupil, but are completely suitable for astronomical observations and are some compromise between dimensions, transportability and price. In addition, if there is a small illumination of the sky, the binoculars with a smaller output pupil give a more dark background, but the binoculars with an equally magnifying increase will show a brighter picture with an equally magazine. There are binoculars 20x120, 25x150 or more, but they are very expensive and not very transportable. Also there are binoculars with a variable zoom ("zoom") - I do not recommend such binoculars for astronomarts - as a rule, the quality of the picture in low-cost zoom binoculars is worse than in a fixed zoom binoculars. In addition, they have a very small field of view of eyepieces - about 30 ... 40 degrees.

Sample type of "Andromeda Nebula" in binoculars 7x50 and 10x50

An equally important parameter is the field of vision of binoculars - it can vary from 45 to 80 degrees. The real field of view of binoculars - that is, the size of the region in the sky, which is visible in the eyepiece - can be calculated, separating the field of vision of the eyepieces to increase. Thus, 7x35 binoculars with an eyepiece field of 60 degrees will provide a visible field of view of 60: 7 \u003d 8.6 degrees. For comparison, the corner size of the moon is half grades, that is, 17 lunar discs will fit in the field of view of binoculars. Binoculars with an eyepiece field of more than 60 degrees are called wide-angle. If you compare two binoculars - one with a field of vision of eyepieces 70 degrees, the second - with a field of view 45 degrees, then a look in the second binoculars after the first will look at the "keyhole" - the image will be noticeably limited by the black field around. Conversely, a look into wide-angle binoculars with a field of 72 ... 80 degrees seems to be a look in the porthole of the spacecraft, when the edge of the field of view is either not visible, or they are practically not rushing into the eyes. However, it should be noted that the quality of the image in wide-angle binoculars at the edges of the field of view may be bad, and instead of point stars will be visible "birds" and "comets".

The greater the increase in binoculars, the noticeable hand shake. Also from a large and heavy binoculars, their hands tired faster, which also enhances trembling. Binoculars with multiplicity of more than 10x I recommend installing on a photochative using a special adapter (L-adapter). If you are planning to observe exclusively with the hands - I recommend to limit the multiplicity of 10x.

Binoculars on a "parallelogram"

There are also binoculars with image stabilization - for example, Canon 10 × 30 IS. Such binoculars are very convenient when observing the hands, however, the price of them is significantly higher than on binoculars without stabilization.

Binoculars with Stabilization of Canon 15 × 50 IS

What to pay attention to the purchase of binoculars?

1) Look into the binoculars lens, there should be no dust, chips, drops of glue and garbage on the prisms.

2) Echolar node (focusing mechanism + fastening of eyepieces) should not be too climb.

3) When observing the eye binoculars should not be tired. Place a comfortable interpation distance, focus on a distant subject and watch. If after observing the eyes hurt and the head is very spinning - perhaps, such binoculars are non-parallel. Such binoculars are better not to take. Try another instance, perhaps from several instances it will be possible to choose one with normal axes. Check the alignment of the stars is very simple - go on a bright star, focus the left eyepiece so that the star is clearly visible, and then defocused the right eyepiece (in most binoculars there is an additional correction of one of the eyepieces, usually right). In the left eyepiece, the star will be visible as a point, and in the right - as a circle, the star should be kept exactly in the center of sight. If the star point is visible exactly in the center of the defocused star, then the axes are parallel. If the star is left or right - it means that the alignment of horizontal is broken. With small angles of discrepancies, it is not scary, eyes automatically reduce two images into one. If the star point is above or below the star-ball is already a violation of vertical accuracy, and it is already bad - such binoculars to return or exchange or exchange, otherwise get headaches and tired eyes. Health is more expensive!

4) Output pupils must be round shape. If the output pupils are square - it means that the part of the binoculars aperture is cut with prisms, and in fact you have binoculars, for example, not 7x50, and 7x40, although lens lenses can correspond to the declared diameter. Also, I also advise you to measure the input and output pupil of binoculars to the ruler to eliminate the hidden aperture of the aperture.

5) Do not order binoculars in an online store on an advance payment - binoculars must be checked personally on the items specified above, up to the selection of several instances. Believe me - in the store you can "hit" a marriage or illiquid (or consciously, or without having sufficient experience to check binoculars). The same applies to purchases of binoculars on Avito and other online ads.

To observe with the hands, choose binoculars with multiplicity to 10x (7x35, 7x50, 8x40, 8x56, 10x40, 10x42, 10x50), and to observe from a tripod - binoculars 15x70, 20x60, 20x80, 25x100.