A monocular (in common people - "one-eyed") can be compared with a portable telescope or a low-power telescope. This device should be held in the hand like binoculars, but observation through it is carried out with one eye, like a telescope. In general, the technical characteristics and design of the monocular are similar to the above observation devices, but its dimensions are much smaller.
Compact dimensions are the main distinguishing feature and the main advantage in relation to competitors that the monocular has: there are models that are no longer than the index finger and their thickness is no more than a regular pen. Almost any model can be placed in a pocket or small travel purse. An additional function of the described portable device can also be called its use as a magnifying glass (loupe).
If the user needs to inspect a wide area for a long time, then it is preferable to use binoculars for this purpose. In the course of its use, both eyes are involved at once, which means that the body receives a smaller share of visual stress. Thus, if the task of the observer includes a long survey of a large area, observation of stars or birds, tracking or other complex process, then binoculars will be many times better than a monocular.
At the same time, the compact monocle can always be with the user in the place where it is impossible to take bulky binoculars with you. To be always at hand is its immediate purpose. Observation of a short period may sometimes be necessary on a hike, on an excursion, in a hunt - in general, then a monocle can become an indispensable tool. Depending on the goals, each user makes his own choice in favor of one or another optical device.
Regarding the spyglass: it is useful only when the user needs increased resolution or multiple magnification. At first glance, it may seem that the telescope is just an enlarged monocular, however, these two devices have different optical systems. Among other things, some models of pipes are large and in order to get a better picture (to avoid shaking), the pipe must be installed on a special tripod - this provides an extra share of stability when observing in conditions of high magnification. The monocular can be used even while standing on tiptoes or peeping around a corner.Although, some of its models can also be mounted on a tripod and even connected to smartphones (or other video / photography devices) to take digital photos.
In many ways, it is similar to the structure of a telescope and binoculars. The difference in most cases is only in size and shape. Although monocles are smaller, at the same time, they also have a lower magnification / power. The difference from binoculars will be in a smaller viewing angle and increased stress on the optic nerve.
The monocular design consists of:
This device and its low weight allow you to inspect the required terrain in a short period, when you cannot take more powerful optics with you.
In everyday life, I often use the monocular for fishing, hunting and tourism. Based on the needs for which an optical device is needed, it is necessary to determine its main functions and parameters to which it must correspond. The following are the properties to watch out for:
The last two properties are directly important, since any optical device must have high-quality lenses and minimal protection of the case, because otherwise the observation carried out may have zero result. The most expensive and powerful models have high rates on all points of the main characteristics, but the price of such devices is extremely high. Nevertheless, it makes no sense to exchange for cheap optics, so the choice of a monocular device often becomes difficult for the user.
Multiplicity is called a characteristic that shows the degree of approach to the object of observation. It is usually indicated by the first number in the name of the device. For example, marking in "6x15" means that the objects in question will appear 6 times closer than they actually are. It seems that the greater the multiplicity of the device, the better. However, this comes with some inconveniences: the more the device can enlarge the picture, the more difficult it is to operate. This principle is fully consistent with a monocular instrument.
It is known from practice that 5 or 6 times magnification is acceptable for a monocle - such instruments have more or less clear image stabilization and optimal mass. With a magnification of 8 times or more, the user will already be faced with the vibration ("shaking") of the picture, and the field of view will become much narrower. The most problematic are models with a magnification of 10x and higher - for them you will already have to use a tripod, in addition, their dimensions will no longer be pocketable. In some situations, they will definitely be needed, but monocles are characterized by a fixed magnification, for which they, in fact, were intended as portable devices.
Lens diameter refers to the size of the lens in millimeters, which is installed at the front of the structure. It is marked with the second digit in the model name. The luminosity of the monocular depends on this property - the larger the diameter, the greater the force. It is worth remembering that a large lens at the entrance is not always the best solution, because the larger it is, the heavier the mass of the device itself. For example: a "one-eyed" with parameters of 10x40 weighs about half the mass of an ordinary field binoculars, but parameters in 5x15 already allow reaching sizes no thicker than a human thumb.
Field of view refers to the area of space that is viewed through the eyepiece.For a more visual representation, it is possible to give the following example: if we consider a fence at a distance of 1 kilometer with a linear field of "one-eye" of 113 meters, then it is possible to observe a fragment from the fence, which will be only 113 meters. It should be remembered that the narrowing of the visual field will occur when the magnification changes. If the observation latitude plays a greater role for the observer, then the lowest multiplicity should be used. As a practical example, the following situation can be cited: hunters, for shooting at mobile game, always use wide-field "one-eyes", because the target can quickly slip out of the field of view. If the object of observation is inactive or simply static (as an option: shooting practice in the army), then it is better to use a high magnification monocle.
Removal of the exit pupil is the distance between the eyepiece and the eye, in which the established field of view is fully visible and the clarity of the picture is not distorted. This parameter is measured in millimeters and is also referred to as "eye relief". This property is extremely important for eyeglass wearers, as the frame and lens of the glasses give some distortion as the eye approaches the output lens. If the observer does not plan to take off his glasses during the observation, then he should use a "one-eye" with a pupil removal of 14 millimeters or more.
Sharpness and depth - this is the name of the maximum allowable value at which there is no need to re-adjust the focus.
Optical coating means the influence of illumination at the time of observation on the brightness of the picture and color correction and color rendition. Expensive “one-eye” models use optics with full multi-layer coating (FMC), followed by models with standard multi-layer coating (MC), budget models have single-layer coating (C).
Gas filling means filling the sealed body of the device with a special inert gas, which prevents the formation of condensation on the internal parts and structural parts.
IMPORTANT! In case the optical device will be used in difficult conditions (hunting or hiking), a model with a waterproof case (WP - water proof) should be used. However, in all other conditions, this protection may not be needed - it is quite possible to do with the protection against splashes (WR - water resistance) and not overpay extra money.
These samples will differ from ordinary models with an enlarged lens (and its diameter), the presence of special protection against light exposure, and an automated brightness control system. At the same time, infrared illumination can be used in "night one-eyed" devices. These models are extremely relevant for fishermen and hunters, professional tourists, military personnel, employees of various law enforcement agencies. They, like their younger brothers, usually do not take up much space and can be taken with you on any trips.
Most professionals advise paying attention specifically to the characteristics of the monocular, and not to its manufacturer. The following parameters will play an important role:
Reliable, small in size and light in weight. For all the minimalism of this model, good power is realized in it.Even in the evening and in cloudy weather, the device is capable of producing a good image due to the use of sufficient aperture. Additionally completed with a protective cover for transportation.
Probably the best device from Chinese manufacturers. It is able to support zoom and lens adjustments, which means the ability to quickly adjust for the individual's vision. The lenses themselves (both the input and the receiving lenses) are slightly "recessed" into the body, which makes observation in strong bright lighting more comfortable.
Extremely compact model - about 17 centimeters long. With its relatively small declared power, it is very easy to use. Perfect for excursion and tourist needs. Moreover, the sample is made of an aluminum case and additionally rubberized. It is very convenient to adjust the focal length by simply rotating the eyepiece. This monocular can be used with equal success for observing both moving and static objects.
Despite the small magnification available with this device, it compensates for this circumstance with an excellent viewing angle and an excellent field of view. It can deservedly compete in these parameters even with samples from the premium class. The picture is very clear and the contrast does not hurt the eyes. The body is made of high-strength plastic, and the device itself weighs about 220 grams. Additionally completed with a waterproof cover.
A specialized monocular can be successfully used for active travel. The extended field of view is especially suitable for tracking moving game. Small weight and dimensions allow you to conveniently place it in a pouch or breast pocket. It has a very simple design.
The high-quality coated lens and the eightfold magnification used ensure this "one-eye" a leading position in its segment. The design provides for a soft rubber eyecup, which does not create unnecessary discomfort for the observer's eye socket. The housing is filled with nitrogen from the inside and is completely sealed. Includes dedicated strap, cleaning cloth and lens cap.
The 15x magnification of this monocle provides excellent detailing of the observed area of space. Users unanimously note the convenient placement of the focusing wheel. Additional comfort is provided by the retractable eyecups. Completeness is expanded with a special tripod for installation and fixed observation. The construction uses special prisms according to the BaK4 technology with the option of multilayer.
|Manufacturer country||Great Britain|
|The diameter of the island||50|
This sample is preferred by experienced hunters and tourists, for whom additional functionality is of no small importance. The monocle is equipped with a lens with an extended diameter, has a built-in infrared illumination for a distance of up to 100 meters. It can work in conditions of complete darkness, it is possible to connect to external photo and video devices. The surf is equipped with additional protection against external extreme conditions.
The sample from the German manufacturer is considered the best in all of Europe. Provides excellent visibility in any weather, has infrared illumination. The lens is protected by a special coating, which eliminates the appearance of external errors for the image. The design has an automatic monitoring function with a shutdown timer. Recording to external devices is possible at the same time. With rather large dimensions, it is lightweight.
|The diameter of the island||50|
After reading this article, you might get the impression that the monocular is quite capable of replacing both a telescope and binoculars. However, this is not quite true. Indeed, the pair use of two different models of "one-eyed" will perfectly cope with the tasks of binoculars, especially since the price for their purchase will be much lower. All the same, that the tube, that the binoculars are used for specific types of tasks, so it will not be possible to completely replace them in certain cases.
Modern industry is able to offer various models of monocles, the main thing is to choose them correctly. For example, it is possible to recognize high-quality optics by the characteristic multicolored tints, which will be present together with a sense of the depth of the lens. When buying a device with a large lens, it is imperative to check the assembly of the case - it should not contain any scratches, mechanical damage, or any backlash unforeseen by the design. At the same time, the body material must prevent overheating of the device.
As a result, high-quality monoculars can be purchased without any problems both in trustworthy online stores and in retail chains.