How to choose a microscope

Contrary to popular belief, a microscope is not just interesting and very useful little thing that allows you to significantly expand your knowledge child about the world. Neither can do without this tool one lesson in chemistry and physics at school and institute, and also this tool is essential in a wide variety of industrial laboratories and in production. All kinds of people use it. radio amateurs, screwdriver and soldering iron masters – with its help solder small transistors and other parts to the circuit board no difficulty. Of course, only if when the microscope is selected correctly, and its functionality is entirely meets the requirements and operating conditions.

choose a microscope

The best manufacturers. Which company to choose a microscope?

Modern models of microscopes are significantly different from their predecessors. The quality of the transmitted image is increasing, resolution and clarity, and additional features like backlight and image recording functions in digital format. The only thing that remains unchanged is the presenters manufacturing firms considered traditional market leaders and supplying our own products to various industrial laboratories. For this reason, preference should be given products of the following manufacturers:

  1. Sturman;

  2. Sititek

  3. Zeiss;

  4. Nikon

  5. Sigeta;

  6. Bresser;

  7. Levenhuk;

Under the given trademarks a great variety is issued. diverse products capable of satisfying requests like beginners and specialists in certain fields. However before giving preference to a particular model, it is necessary not just study its specifications and compare the device with nearby peers, but also read reviews buyers who have time to try one or another model in practice and highlighting its strengths and weaknesses.

Types of microscopes and the principle of their action

A microscope is an optical device that allows you to view objects with their multiple increase. The simplest microscopes are a complex of lenses of various designs and diameters, which provide multiple zoom and allow consider the cellular fibrous structure of one or another object. Basic operating principle and functionality devices remain unchanged to this day, however technical the implementation of core capabilities has advanced far due to implementation of electronic computing power and computer technology. Currently, all the microscopes presented in sale, can be divided into the following conditional categories.

Monocular Microscopes

Monocular microscopes

The most simple and popular among buyers optical Devices with Decent Functionality Range approximation of the best devices can reach 1200-1500 times that, coupled with the use of high-quality optics, it provides sharp, detailed and clear picture. Complete with most models come with interchangeable color filters that allow you to level features of incidence of light, as well as interchangeable monoculars, expanding device capabilities.

Advantages

  • Compact size;

  • Allow installation of monoculars with other characteristics multiplicity;

  • Replaceable color filters included;

  • Approximation up to 1500 times;

  • Decent functionality;

disadvantages

  • Do not differ in high durability;

  • Some discomfort due to the monocular design;

  • A fairly time-consuming setup that requires certain skills;

Binocular microscopes

Binocular microscopes

Devices equipped with two independent from each other monoculars, so the user gets the opportunity observe with a microscope with two eyes. This has a positive effect. on the clarity of the resulting picture and provides high-quality and full color rendition of the studied object. The best models of this class boast an approximation up to 1500-1600 times, the range of approximation of the eyepieces ranges from 10 to 20x. A very interesting feature of such devices is called fixed lens turret different multiplicity, which allows you to change the zoom range in on-line mode.

Advantages

  • High functionality;

  • Ability to connect a digital camera (not on all models);

  • Existence of a revolving holder allowing to fix lenses various degrees of multiplicity;

  • High zoom range, reaching 1500-1600 multiple for the most functional models;

  • Clear, contrasting and detailed picture in any conditions operation;

disadvantages

  • They require certain handling skills;

  • Additional accessories are quite expensive;

  • Not cheap;

Electron microscopes

Electronic microscopes

The most functional, modern and advanced devices, which are now very popular. Eyepieces like such devices do not have, and image transmission either on the built-in LCD or on the monitor computer using a special cable, and therefore the user gets the ability to record the resulting image without applying any additional devices. Another advantage is the presence of a large number of different accessories – like original, manufactured by manufacturers, and third-party, compatible with a specific device. You can use them significantly expand the functionality of the device, change it photosensitivity or range of approach, level color flow using an appropriate filter and perform many other functions.

Advantages

  • Easy to use;

  • The presence of a large number of additional accessories;

  • The ability to record images in digital format without using additional devices;

  • High quality pictures;

  • Excellent functionality;

disadvantages

  • High price;

  • The need for a power source or stationary PC;

Selection options. What to look for when choosing a microscope?

choose a microscope according to characteristics

Modern microscopes are high-precision optical devices, the functionality of which is entirely dependent on the implemented manufacturer of technical solutions and a set of additional options, present in it. Of course, the higher the functionality of or another microscope – the more expensive its total cost. Exactly for this reason, choosing the device with the maximum value for money, you should take into account the following features:

  1. Lens design. From how well thought out is the design, the resolution of the displayed image depends on its overall quality. Currently on sale can be seen as immersion-free lenses and their liquid counterparts. Last allow you to get a high resolution image, and as the working fluid in them is used oil or distillate.

  2. The presence of an optical image correction system. Any an optical device certainly has the so-called chromatic aberration – a kind of defect, expressed in distortion geometric straight image. In order to reduce it to to a minimum, manufacturers apply many different solutions in In particular, special lenses are installed that have a special form. The highest quality devices are equipped planachromatic and planochromatic lenses, chromatic aberration in which is completely absent. These lenses are labeled with the letters PLAN and PLAN-APO respectively;

  3. Zoom lens. Displays maximum multiplicity approximations and the ability to view the smallest details of that or any other object. Multiplicity almost always starts with 10-15x and can reach 2000-4000x in professional research models. Since this parameter has microscope functionality is the most direct impact before the purchase of a device is necessary to determine tasks that will be solved with its help.

  4. Resolution of the microscope. Parameter, directly affecting the quality, sharpness and contrast of the resulting Images. It depends entirely on the aperture of the device – the higher this parameter for a specific microscope – the higher it resolution. When it comes to dry lenses, their number the aperture is 1.0. For wet models, this parameter is 1.25 respectively. Choosing an optical microscope, preference should be given to models with a resolution of at least 0.2 microns.

  5. The maximum useful approximation of the microscope. Displays the zoom limit at which picture quality is still keeping at the maximum level. Usually for optical microscopes this parameter can vary in the range from 1000 up to 1250 times depending on the type of lens installed on it. Despite the fact that such devices can provide more approximation, the quality of the image is greatly affected, which in some cases makes the device useless;

  6. Type and construction of eyepieces. If we talk about optical models on sale you can find devices equipped monocular, binocular microscopes, as well as models combined type, equipped with both monocular and binoculars. In the case of electronic and digital devices, the role eyepieces performs digital display or computer monitor.

Which microscope to choose for specific tasks?

microscope selection criteria

Technical features of specific devices – parameter, undoubtedly important, but it is necessary to consider it, relying on functionality and specific operating conditions, as well as tasks, which are planned to be solved using the device.

Choosing a microscope for a student

In order for science lessons to go as far as possible effective and beneficial for the child, it is necessary to choose high-quality microscope. For these purposes, monocular is quite suitable. either a binocular optical microscope equipped with lenses plans of chromatic construction. The multiplicity of such a device should reach 350-400x with the ability to change using a set interchangeable lenses located on a turret holder. Useful the feature will probably be the ability to connect a digital camera, which will allow you to get detailed pictures of the studied object.

Choosing a microscope to study cells

Cell research is not an easy task and it is far from needed to each. First of all, we are talking about those who study such discipline like biology. The main characteristic of such devices – the maximum possible magnification, and therefore preference should be given to models with maximum multiplicity approximations equipped with planachromatic or planochromatic lens and resolution no less than 0.25-0.3 microns. The design of the device can be as traditional, optical and modern digital – it all depends on the tasks and on conditions in which studies will be carried out.

Criteria for choosing a soldering microscope

Microscopes are no less popular among various kinds radio engineers and lovers of computer technology, and also among the masters involved in its repair. PCB soldering and their individual elements with a microscope – quite an occupation common and exhibiting well-defined characteristics to the type of microscope. The zoom factor does not play here essential role – quite enough devices with an approximation about 50-75 times. More important is the overall width. image coverage, as well as the complete absence of distortion and chromatic aberration. Resolution also plays an important role – the higher it, the easier it is to carry out the soldering process of small parts. The greatest conventional optical microscopes equipped with binocular eyepieces, as well as modern digital devices.

In the following articles, our experts tell you how to choose telescope and the secrets of choosing a filter for the aquarium.

Microscope Selection Video


Attention! This material is subjective opinion of the authors of the project and is not a buying guide.

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