5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123

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MZ02371123
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Warranty:
5/1 Years
  • 5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123
  • 5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123
  • 5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123
  • 5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123
  • 5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123
  • 5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123
  • 5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123
  • 5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123
  • 5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123
  • 5.0 Megapixels 5-20X CMOS LED Light Track Stand Nosepiece Video Microscope MZ02371123


Quick Overview
Infinite. Total Magnification: 5-20X. 5X 10X 20X Infinity Plan Long Working Distance Achromatic Metallurgical Objective. Standard Coupler: 1X. Body Mounting Size for Stand: Dia. 45mm. Track Stand. LED Light. Light Adjustable. CMOS. 5.0 Megapixels. USB 3.0. Windows XP/7/8/10. Input Voltage: AC 90-240V 50/60Hz.

MZ02371123 Nosepiece Video Microscope
Optical System Specifications
Optical SystemInfinite
System Optical Magnification5-20X
Total Magnification5-20X
Standard Objective5X 10X 20X Infinity Plan Long Working Distance Achromatic Metallurgical Objective
Standard Coupler1X
System Working Distance10.4-23.6mm
Video Monocular Fixed Power Body
1X Fixed Power Video Microscope Body with Nosepiece and Coaxial Illuminater
Body Optical SystemInfinite
Body Magnification1X
Zoom Range1X
Body Mounting Size for Stand Dia. 45mm
Body Mount Type for CouplerFastening Screw
Body Mount Size for Coupler Dia. 30mm
Inward/Outward NosepieceNosepiece Inward
Number of Holes on NosepieceTriple (3) Holes
Nosepiece Switch ModeManual
Nosepiece Screw Thread for ObjectiveRMS Standard (4/5 in. x1/36 in. )
Objective Convertible Adapter Screw Thread4/5 in. x1/36 in. /M26x1/36 in.
Illuminator Mount Type for BodyFastening Screw
Illuminator Mount Size for Body Dia. 30mm
Illuminator Mount Type for ObjectiveFastening Screw
Illuminator Mount Size for Objective Dia. 25mm
Vertical Illuminator Adapter Size Dia. 11mm
Adjustable CouplerAdjustable
Coupler Magnification1X
C/CS-Mount CouplerC-Mount
Surface TreatmentSpray Paint
MaterialMetal
ColorBlack
Net Weight0.50kg (1.10lbs)
Metallurgical Objective
5X Infinity Plan Long Working Distance Achromatic Metallurgical Objective
Objective Optical SystemInfinite
Objective Optical Magnification5X
Objective TypePlan Achromatic Objective
Objective Parfocal Distance45mm
Objective for Focal Length200mm
Objective Working Distance23.6mm
Numerical Aperture (N.A.)N.A. 0.12
Objective Cover Glass Thickness/-
Objective Immersion MediaDry Objective
Objective Screw ThreadRMS Standard (4/5 in. x1/36 in. )
Objective Outer Diameter Dia. 24mm
Surface TreatmentPolished Chrome
MaterialMetal
ColorSilver
Net Weight0.06kg (0.13lbs)
10X Infinity Plan Long Working Distance Achromatic Metallurgical Objective
Objective Optical SystemInfinite
Objective Optical Magnification10X
Objective TypePlan Achromatic Objective
Objective Parfocal Distance45mm
Objective for Focal Length200mm
Objective Working Distance17.7mm
Numerical Aperture (N.A.)N.A. 0.25
Objective Cover Glass Thickness/-
Objective Immersion MediaDry Objective
Objective Screw ThreadRMS Standard (4/5 in. x1/36 in. )
Objective Outer Diameter Dia. 25mm
Surface TreatmentPolished Chrome
MaterialMetal
ColorSilver
Net Weight0.07kg (0.15lbs)
20X Infinity Plan Long Working Distance Achromatic Metallurgical Objective
Objective Optical SystemInfinite
Objective Optical Magnification20X
Objective TypePlan Achromatic Objective
Objective Parfocal Distance45mm
Objective for Focal Length200mm
Objective Working Distance10.4mm
Numerical Aperture (N.A.)N.A. 0.40
Objective Cover Glass Thickness/0
Objective Immersion MediaDry Objective
Objective Screw ThreadRMS Standard (4/5 in. x1/36 in. )
Objective Outer Diameter Dia. 25mm
Surface TreatmentPolished Chrome
MaterialMetal
ColorSilver
Net Weight0.09kg (0.20lbs)
Track Stand
76mm Fine Focus Track Stand
Stand TypeTrack Stand
Holder Adapter Type Dia. 76mm Scope Holder
Track Length325mm
Base TypeTable Base
Base ShapeRectangle
Stand Throat Depth121mm
Base Dimensions320x305x16mm
Focus ModeManual
Coarse/Fine Focus TypeCoaxial Coarse/Fine Focus
Focus Distance200mm
Fine Focus Travel Distance200mm
Coarse Focus Distance per Rotation23mm
Fine Focus Distance per Rotation0.56mm
Focusing Knob Tightness AdjustableTightness Adjustable
Surface TreatmentSpray Paint
MaterialMetal
ColorWhite
Net Weight3.35kg (7.39lbs)
Dimensions320x305x341mm (12.598x12.008x13.425 in. )
Donut Adapter
45/76mm Donut
Donut Adapter TypeScope Mounting Converter
Donut Adapter Size for Scope Mounting Dia. 45mm
Donut Adapter Size for Scope Holder Dia. 76mm
Donut Adapter Height20mm
Surface TreatmentElectroplating Black
MaterialMetal
ColorBlack
Net Weight0.16kg (0.35lbs)
Applied FieldFor MZ08031101, MZ08031102, MZ08011101, MZ08011102 Video Zoom Body
Microscope Plate
95x5mm Black White Stage Plate
Plate TypeBlack White Plate
Plate Size Dia. 95x5mm
MaterialPlastic
ColorBlack, White
Net Weight0.04kg (0.09lbs)
Applied FieldFor ST0201, ST0501, ST1901, ST0801, ST0802 Series Post Stand. ST0203, ST0204 ST0403 Series Track Stand
Spot Light
1X Fixed Power Video Microscope Body with Nosepiece and Coaxial Illuminater
Light Source TypeLED Light
Light Head Adapter Size Dia. 11mm
Power Supply AdjustableLight Adjustable
Power Box Panel Meter DisplayPointer Panel Meter/Scale
Power Box Cooling SystemHeat Sink
Power Box Dimensions125x70x30mm
Output Power3W
Input VoltageAC 90-240V 50/60Hz
Power Cord Connector TypeUSA 2 Pins
Power Cable Length1.3m
USB Digital Camera
5M USB 3.0 CMOS Color Digital Camera
Image SensorCMOS
Image Sensor Size1/2.5 in.
Camera Maximum Pixels5.0 Megapixels
Camera Resolution2560x1922
Camera Signal Output PortUSB 3.0
Camera Lens MountC-Mount
Transmission Frame Rate14.2fps@2560x1922, 38.3fps@1280x960, 101.2fps@640x480
White BalanceManual/Auto
Sensitivity1.76V/lux-sec@550nm
Gain ControlAdjustable
Exposure ControlManual/Auto
Camera CrosshairsGrid
Line ColorUser Defined
Capture FunctionYes
Image Capture Output FormatTIFF/JPG/BMP/PNG
Measurement FunctionYes
Video Output FormatWMV/H264/AVI
LanguageEnglish/French/German/Indonesian/Japanese/Polish/Russian/Simplified Chinese/traditional Chinese/Turkish
System RequirementWindows XP/7/8/10
Driver InstallationDriver free
APINative C/C++, C#, DirectShow, Twain Control API
Camera Operation Temperature-10~50°C (14~122°F)
Camera Operation Humidity30-80%
Camera Housing MaterialMetal
Camera Housing Size68x68x45mm
Camera Housing ColorBlack
Surface TreatmentBlack Oxide Finish
MaterialMetal
ColorBlack
Net Weight0.39kg (0.86lbs)
CalibrationYes
Image StitchingYes

 


Technical Info

Instructions
Video Zoom LensClose Λ
Video zoom lens, refers to microscope that has only one set of imaging optical paths. It can be considered as a set of dual optical path stereo microscopes. The magnification and multiple range of video zoom lens are usually the same as those of a stereo microscope, but because the objective lens is one, its optical imaging is flat, not stereoscopic.

It has been observed that as most of the parametric features are close to stereo microscopes, video zoom lens is then classified as stereo microscope. In fact, it lacks the most important "stereoscopic" imaging features. Compared with other compound microscopes such as biological metallurgical microscopes, the total optical magnification of video zoom lens is generally below 40X, which is the coverage of low magnification range that these microscopes do not have.

Most of the video continuous zoom lens is to observe the electronic image, not through the eyepiece, but through the camera.
Video zoom lens can have relatively more objective lens and photographic eyepiece multiples for selection. At the same time, video zoom lens can also be designed as parallel light so as to add even more configuration accessories, such as observation eyepieces, aperture diaphragms, coaxial illumination light sources, reticles, and nosepieces that can change the viewing angle and direction, etc.
Regarding accessories of video zoom lens such as the stands and light source etc., generally, all accessories of stereo microscope can be used. Therefore, video zoom lens combination is flexible, compact, with strong adaptability and low cost, suitable for use in industry, especially extensively used in the electronics industry.
InfiniteClose Λ
Microscopes and components have two types of optical path design structures.
One type is finite optical structural design, in which light passing through the objective lens is directed at the intermediate image plane (located in the front focal plane of the eyepiece) and converges at that point. The finite structure is an integrated design, with a compact structure, and it is a kind of economical microscope.
Another type is infinite optical structural design, in which the light between the tube lens after passing the objective lens becomes "parallel light". Within this distance, various kinds of optical components necessary such as beam splitters or optical filters call be added, and at the same time, this kind of design has better imaging results. As the design is modular, it is also called modular microscope. The modular structure facilitates the addition of different imaging and lighting accessories in the middle of the system as required.
The main components of infinite and finite, especially objective lens, are usually not interchangeable for use, and even if they can be imaged, the image quality will also have some defects.

The separative two-objective lens structure of the dual-light path of stereo microscope (SZ/FS microscope) is also known as Greenough.
Parallel optical microscope uses a parallel structure (PZ microscope), which is different from the separative two-object lens structure, and because its objective lens is one and the same, it is therefore also known as the CMO common main objective.
System Optical MagnificationClose Λ
The magnification of the objective lens refers to the lateral magnification, it is the ratio of the image to the real size after the original image is magnified by the instrument. This multiple refers to the length or width of the magnified object.
System optical magnification is the product of the eyepiece and the objective lens (objective lens zoom set) of the optical imaging part within the system.
Optical magnification = eyepiece multiple X objective lens/objective lens set

The maximum optical magnification of the microscope depends on the wavelength of the light to which the object is illuminated. The size of the object that can be observed must be greater than the wavelength of the light. Otherwise, the light cannot be reflected or transmitted, or recognized by the human eye. The shortest wavelength of ultraviolet light is 0.2 microns, so the resolution of the optical microscope in the visible range does not exceed 0.2 microns, or 200 nanometers. This size is converted to the magnification of the microscope, and it is the optical magnification of 2000X. Usually, the compound microscope can achieve 100X objective lens, the eyepiece is 20X, and the magnification can reach 2000X. If it is bigger, it will be called "invalid magnification", that is, the image is large, but the resolution is no longer increased, and no more details and information can be seen.
Total MagnificationClose Λ
Total magnification is the magnification of the observed object finally obtained by the instrument. This magnification is often the product of the optical magnification and the electronic magnification.
When it is only optically magnified, the total magnification will be the optical magnification.

Total magnification = optical magnification X electronic magnification
Total magnification = (objective X photo eyepiece) X (display size / camera sensor target )
System Working DistanceClose Λ
Working distance, also referred to as WD, is usually the vertical distance from the foremost surface end of the objective lens of the microscope to the surface of the observed object.
When the working distance or WD is large, the space between the objective lens and the object to be observed is also large, which can facilitate operation and the use of corresponding lighting conditions.
In general, system working distance is the working distance of the objective lens. When some other equipment, such as a light source etc., is used below the objective lens, the working distance (i.e., space) will become smaller.

Working distance or WD is related to the design of the working distance of the objective lens. Generally speaking, the bigger the magnification of the objective lens, the smaller the working distance. Conversely, the smaller the magnification of the objective lens, the greater the working distance.
When it is necessary to change the working distance requirement, it can be realized by changing the magnification of the objective lens.
Video Monocular Fixed Power BodyClose Λ
Video monocular fixed power body is the microscope body that has only one set of optical paths, its magnification is fixed. Its upper end is connected to the C-interface standard photo eyepiece, and the lower end to the objective lens
Zoom RangeClose Λ
Zoom in zoom microscope means to obtain different magnifications by changing the focal length of the objective lens within a certain range through adjustment of some lens or lens set while not changing the position of the object plane (that is, the plane of the point of the observed object perpendicular to the optical axis) and the image plane (that is, the plane of the image imaging focus and perpendicular to the optical axis) of the microscope.
Zoom range refers to the range in which the magnification is from low to high. In the zoom range of the microscope, there is no need to adjust the microscope knob for focusing, and ensure that the image is always clear during the entire zoom process.
The larger the zoom range, the stronger the adaptability of the range for microscope observation, but the image effects at both ends of the low and high magnification should be taken into consideration, the larger the zoom range, the more difficult to design and manufacture, and the higher the cost will be.
Adjustable CouplerClose Λ
On the coupler/C-mount-adapter, there is an adjustable device to adjust the focal length.
Coupler MagnificationClose Λ
Coupler magnification refers to the line field magnification of the coupler/C-mount-adapter. With different magnifications of the adapter lens, images of different magnifications and fields of view can be obtained. The size of the image field of view is related to the sensor size and the coupler/C-mount-adapter magnification.

Camera image field of view (mm) = sensor diagonal / coupler/C-mount-adapter magnification.

For example: 1/2 inch sensor size, 0.5X coupler/C-mount-adapter coupler, field of view FOV (mm) = 8mm / 0.5 = 16mm.
The field of view number of the microscope 10X eyepiece is usually designed to be 18, 20, 22, 23mm, less than 1 inch (25.4mm). Since most commonly used camera sensor sizes are 1/3 and 1/2 inches, this makes the image field of view on the display always smaller than the field of view of the eyepiece for observation, and the visual perception becomes inconsistent when simultaneously viewed on both the eyepiece and the display. If it is changed to a 0.5X coupler/C-mount-adapter, the microscope image magnification is reduced by 1/2 and the field of view is doubled, then the image captured by the camera will be close to the range observed in the eyepiece.
Some adapters are designed without a lens, and their optical magnification is considered 1X.
C/CS-Mount CouplerClose Λ
At present, the coupler/C-mount adapter generally adopts the C/CS-Mount adapter to match with the industrial camera. For details, please refer to "Camera Lens Mount".
Objective Optical MagnificationClose Λ
The finite objective is the lateral magnification of the primary image formed by the objective at a prescribed distance.

Infinite objective is the lateral magnification of the real image produced by the combination of the objective and the tube lens.
Infinite objective magnification = tube lens focal length (mm) / objective focal length (mm)

Lateral magnification of the image, that is, the ratio of the size of the image to the size of the object.
The larger the magnification of the objective, the higher the resolution, the smaller the corresponding field of view, and the shorter the working distance.
Objective TypeClose Λ
In the case of polychromatic light imaging, the aberration caused by the light of different wavelengths becomes chromatic aberration. Achromatic aberration is to correct the axial chromatic aberration to the two line spectra (C line, F line); apochromatic aberration is to correct the three line spectra (C line, D line, F line).
The objective is designed according to the achromaticity and the flatness of the field of view. It can be divided into the following categories.

Achromatic objective: achromatic objective has corrected the chromatic aberration, spherical aberration, and comatic aberration. The chromatic portion of the achromatic objective has corrected only red and green, so when using achromatic objective, yellow-green filters are often used to reduce aberrations. The aberration of the achromatic objective in the center of the field of view is basically corrected, and as its structure is simple, the cost is low, it is commonly used in a microscope.

Semi-plan achromatic objective: in addition to meeting the requirements of achromatic objective, the curvature of field and astigmatism of the objective should also be properly corrected.
Plan achromatic objective: in addition to meeting the requirements of achromatic objectives, the curvature of field and astigmatism of the objective should also be well corrected. The plan objective provides a very good correction of the image plane curvature in the field of view of the objective, making the entire field of view smooth and easy to observe, especially in measurement it has achieved a more accurate effect.

Plan semi-apochromatic objective: in addition to meeting the requirements of plan achromatic objective, it is necessary to well correct the secondary spectrum of the objective (the axial chromatic aberration of the C line and the F line).
Plan apochromatic objective: in addition to meeting the requirements of plan achromatic objective, it is necessary to very well correct the tertiary spectrum of the objective (the axial chromatic aberration of the C line, the D line and the F line) and spherochromatic aberration. The apochromatic aberration has corrected the chromatic aberration in the range of red, green and purple (basically the entire visible light), and there is basically no limitation on the imaging effect of the light source. Generally, the apochromatic aberration is used in a high magnification objective.

Objective Parfocal DistanceClose Λ
Objective parfocal distance refers to the imaging distance between the objective shoulder and the uncovered object surface (referred to as the “object distance). It conforms to the microscope design, usually 45mm.
The objective of different magnifications of the compound microscope has different lengths; when the distance between the objective shoulder and the object distance is the same, the focal length may not be adjusted when converting to objectives of different magnifications.
Objective for Focal LengthClose Λ
Objective for focal length is a design parameter of the tube focal length of the microscope that the objective is suitable for.
Objective Working DistanceClose Λ
The objective working distance is the vertical distance from the foremost surface end of the objective of the microscope to the object surface to be observed.
Generally, the greater the magnification, the higher the resolution of the objective, and the smaller the working distance, the smaller the field of view. Conversely, the smaller the magnification, the lower the resolution of the objective, and the greater the working distance, and greater the field of view.
High-magnification objectives (such as 80X and 100X objectives) have a very short working distance. Be very careful when focusing for observation. Generally, it is after the objective is in position, the axial limit protection is locked, then the objective is moved away from the direction of the observed object.
The relatively greater working distance leaves a relatively large space between the objective and the object to be observed. It is suitable for under microscope operation, and it is also easier to use more illumination methods. The defect is that it may reduce the numerical aperture of the objective, thereby reducing the resolution.
Numerical Aperture (N.A.)Close Λ
Numerical aperture, N.A. for short, is the product of the sinusoidal function value of the opening or solid angle of the beam reflected or refracted from the object into the mouth of the objective and the refractive index of the medium between the front lens of the objective and the object.
Simply speaking, it is the magnitude of the luminous flux that can be brought in to the mouth of the objective adapter, the closer the objective to the specimen for observation, the greater the solid angle of the beam entering the mouth of the objective adapter, the greater the N.A. value, and the higher the resolution of the objective.
When the mouth of the objective adapter is unchanged and the working distance between the objective and the specimen is constant, the refractive index of the medium will be of certain meaning. For example, the refractive index of air is 1, water is 1.33, and cedar oil is 1.515, therefore, when using an aqueous medium or cedar oil, a greater N.A. value can be obtained, thereby improving the resolution of the objective.

Formula is:
N.A. = refractive index of the medium X sin solid angle of the beam of the object entering the front lens frame of the objective/ 2

Numerical aperture of the objective. Usually, there is a calculation method for the magnification of the microscope. That is, the magnification of the microscope cannot exceed 1000X of the objective. For example, the numerical aperture of a 100X objective is 1.25, when using a 10X eyepiece, the total magnification is 1000X, far below 1.25 X 1000 = 1250X, then the image seen in the eyepiece is relatively clear; if a 20X eyepiece is used, the total magnification will reach 2000X, much higher than 1250X, then eventhoughthe image actually seen by the 20X eyepiece is relatively large, the effect will be relatively poor.
Objective Cover Glass ThicknessClose Λ
The thickness of the cover glass affects the parfocal distance of the objective. Usually, in the design of the focal length of the objective,the thickness of the cover glass should be considered, and the standard is 0.17mm.
Objective Immersion MediaClose Λ
The use of different media between the objective and the object to be observed is to change and improve the resolution. For example, the refractive index of air is 1, water is 1.33, and cedar oil is 1.515. Therefore, when using an aqueous medium or cedar oil, a greater N.A. value can be obtained, thereby increasing the resolution of the objective.
Air medium is called dry objective, where oil is used as medium iscalled oil immersion objective, and water medium is called water immersion objective.
However, because of the working distance of the objective, when the working distance of the objective is too long, the use of liquid medium will be relatively more difficult, and it is generally used only on high magnification objective having a shorter working distance, such as objectives of 60X, 80X and 100X.

When using oil immersion objective, first add a drop of cedar oil (objective oil) on the cover glass, then adjust the focus (fine adjustment) knob, and carefully observe it from under the side of the objective of the microscope, until the oil immersion objective is immersed in the cedar oil and close to the cover glass of the specimen, then use the eyepiece to observe, and use the fine focus knob to lift the tube until the clear imageof the specimen is clearly seen.
The cedar oil should be added in an appropriate amount. After the oil immersion objective is used, it is necessary to use a piece of lens wiping tissue to dip xylene to wipe off the cedar oil, and then wipe dry the lens thoroughly with a lens wiping tissue.
Objective Screw ThreadClose Λ
For microscopes of different manufacturers and different models, the thread size of their objectives may also be different.
In general, the objective threads are available in two standard sizes, allowing similar objectives between different manufacturers to be used interchangeably.
One is the British system: RMS type objective thread: 4/5in X 1/36in,
One is metric: M25 X 0.75mm thread.
Track StandClose Λ
Throughout the focusing range, the track stand moves up and down along the guide rail through the focusing mechanism to achieve the purpose of focusing the microscope. This kind of structure is relatively stable, and the microscope is always kept moving up and down vertically along a central axis. When the focus is adjusted, it is not easy to shake, and there is no free sliding phenomenon. It is a relatively common and safe and reliable accessory.
The size of the stand is generally small, flexible and convenient, and most of them are placed on the table for use, Therefore, together with the post stand, it is also called “desktop or table top stand".
With regard to the height of the stand, most manufacturers usually do not make it very high. If the guide rail is long, it is easy to deform, and relatively more difficult .
Dia. 76mm Scope HolderClose Λ
The 76mm stand scope holder is the most popular microscope body adapter size, suitable for stereo microscopes produced by most manufacturers.

Place the microscope body in a 76mm scope holder, tighten with screws to avoid shaking when the microscope is in use.
Because this stand scope holder is very common, some special-sized microscopes can also borrow and use this stand, but only need a specific adapter to connect the microscope body with a diameter of less than 76mm.
Stand Throat DepthClose Λ
Stand throat depth, also known as the throat depth, is an important parameter when selecting a microscope stand. When observing a relatively large object, a relatively large space is required, and a large throat depth can accommodate the object to move to the microscope observation center.
Coaxial Coarse/Fine FocusClose Λ
Focus mechanism, the coarse / fine focus knobs are in a coaxial center position, they are connected together by a gear reduction mechanism, which can be coarse/ fine focus adjusted at any time during the entire stroke.
Generally, the coarse focus diameter is relatively big, which is inside close to the body of the microscope, and the fine focus diameter is relatively small, which is outside of the body of the microscope. Coarse focus adjustment is used to quickly move to find the image, and the fine focus adjustment is used to finely adjust the clarity of the image. Generally, the minimum read value of the fine focus adjustment can be accurate to 1 micron, and single circle can reach a stroke of 0.1 mm. Mechanical fine focus plays a very important role in the accuracy of the microscope resolution. If the fine focus accuracy is not enough, or cannot be stabilized at the sharpest focusing position, the image will be out of focus and become blurred.
The tightness of coarse focus is generally adjustable. Generally, on one side of the knob (usually on the right side), there is a textured knob on the inside of the coarse knob, which is tightened if rotated clockwise; and loosened if rotated counterclockwise.

In the process of focusing, direct focusing should not be on the objective of high magnification; instead, find the object of low magnification first, and gradually adjust to high magnification. Usually, the coarse focus knob is rotated first, and when the objective lens is gradually lowered or the platform is gradually rising, find the object, and then adjust with the fine focus, until the object image in the field of view is clear. Generally, when changing from low magnification to high magnification objective, one only need to slightly adjust the fine focus knob to make the object image clear. During the process, the distance between the objective and the specimen should be observed from the side, to understand the critical value of the object distance between the lens and the specimen.
When using a high magnification objective, since the distance between the objective and the specimen is very close, after the image is found, the coarse focus knob cannot generally be used, and the fine focus knob can only be used to avoid excessive distance of movement, damaging the objective and the slide or specimen.

By using the characteristics of the fine focus, the height or thickness of the observed object can be roughly measured under the microscope, such as measuring the thickness of the cell or tissue, the thickness of the cover glass, and the thickness of small objects that cannot be measured by various conventional measuring instruments.
Method of measurement: place the object to be measured at the center of the field of view of the stage. After the image is clearly focused, try to use the highest magnification objective as much as possible, and align the adapter of the top feature point of the object to be measured. After adjusting clear, record the position of scale of the fine focus knob. Then, move the objective down to the adapter of the lowest feature point of the object to be measured, and record the position of scale of the fine focus knob. Then, according to the above fine focus, record the number of rounds of movement, and based on the parameters of conversion of each round into stroke (see the microscope fine focus knob parameters), the number of rounds is converted into the total stroke, which is the height of the object to be measured. If it is repeated a few times for average, a more accurate measurement can be obtained.
Focusing Knob Tightness AdjustableClose Λ
Different microscope bodies, different human operations, and different requirements for observation and operation, all require adjustment of the pre-tightening force of the stand that support microscope body.
Facing the stand just right, use both hands to reverse the force to adjust the tightness. (face the knob of one side just right, clockwise is to tighten, counterclockwise is to loosen)
In general, after long-time use, the knob will be loose, and adjustment is necessary.
Donut AdapterClose Λ
Donut adapter is an adapter used to convert the scope holder of the microscope and the size of the microscope body. For different manufacturers and different types of microscopes, as well as different stands, their adapters are often different and not interchangeable. This type of donut adapter can be used to connect different microscope stands and microscope bodies, which is very convenient for interchange of different manufacturers and microscope models.
It is usually to use this adapter cable to fix it to the body of the microscope, which is equivalent to changing the fixed diameter of the microscope, and then placing it on the microscope stand.
Microscope PlateClose Λ
According to different objects to be observed, the appropriate platen should be selected. The microscope plate materials include black and white, black and white finish; transparent glass, frosted glass, metal, etc.
Standard stands are generally configured with a suitable microscope plate, but different plates may need to be purchased separately.
Black and white microscope plate are made of general plastics, and the different backgrounds in black and white make the object more prominent.
Finish microscope plate eliminates reflections during observation.
Transparent glass plate is used when observing transparent or translucent objects, and the use of transmitted light source is to make the light penetrate the object to be observed as much as possible.
Finish glass plate, with its rough glass surface, can make the transmitted light more uniform and create a diffusing effect, avoiding exposure of the light shadow of the filament directly onto to the observed object.
Metal plate, relatively more solid, is more suitable when it is necessary to operate and cut.
Microscope plate is generally round shaped, on one side of the base there is a spring clip. When installing, align the plate with the clamp and push it in, and then press down the other end, so that the plate is smoothly embedded in to the circular card slot of the bottom plate.
When removing, grab the other end of the clip, push and lift up the plate.
Spot LightClose Λ
Spot light source of microscopic illumination, usually refers to the “spot” or dot shaped light source, converged at the light exits after the power source emits light. It is usually used for “oblique illumination”, and can be angled with the optical axis of the microscope, very suitable for illumination detecting the cracks, pipe walls etc. of some objects with “height and depth”. When focusing is required, a lens can be added in front of the spot light source for light concentration, making the illumination more uniform.
The focal length of the spot light source usually falls directly on the focal plane of the lens/surface of the reflector in order to achieve maximum brightness and illumination effect.

In spot light source, there is a kind of dual point light. In optical fiber illumination, it is called double pipe light guide, which can adjust the angle and brightness freely, so as to adjust the light and shadow of the illumination to reach the optimal position.

There are also spot light source, which are split into multiple points of illumination on a ring to become a multi-point illumination source, it is a compromise between ring illumination and spot illumination.
Light AdjustableClose Λ
The brightness of the light source adjustable is very important in the imaging of the microscope. Since the difference of the numerical aperture of the objective lens of high magnification and low magnification is very big, more incident light is needed to achieve a much better resolution when using a high magnification objective lens. Therefore, when observing through a high magnification objective lens, the brightness required is high; when observing through a low magnification objective lens, the brightness required is low.
When observing different objects, or feature points of the same object at different positions, the brightness needs are also different; including the difference of background light or reflection within the field of view of observation, it has a great influence on the effect of observing the object, and therefore one needs to adjust the brightness of the light source according to each object to be observed.
In the light source capable of providing continuous spectrum, such as a halogen lamp, the brightness adjustment of the light not only adjusts the brightness and intensity of the light, but also changes the spectrum emitted by the light source. When the light source is dark, there are many components of red light, and when the brightness is high, there are more blue spectrum. If the required light is strong and the spectrum needs to be changed, the light can be kept at a brighter intensity, which is solved by adjusting the spectrum by adding a color filter.

Take note of the dimming button on the light source, after the On/Off switch is turned on, normally clockwise is to brighten, and counterclockwise is to darken.
If it is adjusted to the lowest brightness, the light source should normally be lit. If the naked eye still can't see the object being illuminated brightly, you need to adjust the brightness knob to a much bigger position.
Generally, there is scale marking on the dimming knob, which is an imaginary number representing the percentage of brightness, or an electronic digital display, giving the brightness of the light source under the same conditions a marking.
USB Digital CameraClose Λ
What the camera outputs are digital signals, which are output to the computer via the USB adapter.
There are two kinds of popular USB adapters popular on the market, namely USB2.0 and USB3.0. Both kinds of adapters need different data lines to work.
CMOSClose Λ
CMOS, or complementary metal oxide semiconductor.
Both CMOS and CCD sensors have their own respective advantages and disadvantages. As a kind of photoelectric conversion sensor, among the current cameras, CMOS is relatively more widely used.
Image Sensor SizeClose Λ
The size of the CCD and CMOS image sensors is the size of the photosensitive device. The larger the area of the photosensitive device, the larger the CCD/CMOS area; the more photons are captured, the better the photographic performance; the higher the signal-to-noise ratio, the larger the photosensitive area, and the better the imaging effect.
The size of the image sensor needs to match the size of the microscope's photographic eyepiece; otherwise, black borders or dark corners will appear within the field of view of observation.
Camera Maximum PixelsClose Λ
The pixel is determined by the number of photosensitive elements on the photoelectric sensor of the camera, and one photosensitive element corresponds to one pixel. Therefore, the more photosensitive elements, the larger the number of pixels; the better the imaging quality of the camera, and the higher the corresponding cost.
The pixel unit is one, for example, 1.3 million pixels means 1.3 million pixels points, expressed as 1.3MP (Megapixels).
Camera ResolutionClose Λ
Resolution of the camera refers to the number of pixels accommodated within unit area of the image sensor of the camera. Image resolution is not represented by area, but by the number of pixels accommodated within the unit length of the rectangular side. The unit of length is generally represented by inch.
Camera Signal Output PortClose Λ
The ways digital signals are output are:
USB 2.0, USB3.0
15 Pin VGA
Firewire Port
HDMI
VGA
Camera Link etc.

The ways of analog signal output are as follows:
BNC
RCA
Y-C etc.

In addition, some cameras store and output images in the form of a memory card. Usually, industrial cameras often have several output modes on one camera for convenience purposes.
Camera Lens MountClose Λ
Industrial camera adapters are usually available in three types:
1. C-Mount: 1" diameter with 32 threads per inch, flange back intercept 17.5mm.
2. CS-Mount: 1" diameter with 32 threads per inch, flange back intercept 12.5mm.
CS-Mount can be converted to a C-Mount through a 5mm spacer, C-mount industrial camera cannot use the CS-mount lens.
3. F-Mount: F-mount is the adapter standard of Nikon lens, also known as Nikon mouth, usually used on large-sized sensor cameras, the flange back intercept is 46.5mm.
Transmission Frame RateClose Λ
Frame rate is the number of output of frames per second, FPS or Hertz  for short. The number of frames per second (fps) or frame rate represents the number of times the graphics process is updated per second.

Due to the physiological structure of the human eye, when the frame rate of the picture is higher than 16fps, it is considered to be coherent, and high frame rate can make the image frame more smooth and realistic. Some industrial inspection camera applications also require a much higher frame rate to meet certain specific needs.
The higher the resolution of the camera, the lower the frame rate. Therefore, this should be taken into consideration during their selection. When needing to take static or still images, you often need a large resolution. When needing to operate under the microscope, or shooting dynamic images, frame rate should be first considered. In order to solve this problem, the general industrial camera design is to display the maximum frame rate and relatively smaller resolution when viewing; when shooting, the maximum resolution should be used; and some cameras need to set in advance different shooting resolutions when taking pictures, so as to achieve the best results.
White BalanceClose Λ
White balance is an indicator that describes the precision of white color generated in the image when the three primary colors of red, green and blue are mixed, which accurately reflects the color condition of the subject. There are manual white balance and automatic white balance.
White balance of the camera is to "restore white objects to white color under any light source." The chromatic aberration phenomenon occurred under different light sources is compensated by enhancing the corresponding complementary color. Automatic white balance can generally be used, but under certain conditions if the hue is not ideal, options of other white balance may be selected.
Camera CrosshairsClose Λ
Camera crosshairs refers to the preset reference line within the camera, which is used to calibrate various positions on the display. The most commonly used is the crosshair, which is to determine the center position of the camera image, and it is very important in measurement. Some cameras also have multiple crosshairs that can be moved to quickly detect and calibrate the size of the object being viewed. Some crosshairs can also change color to adapt to different viewing backgrounds.
PackagingClose Λ
After unpacking, carefully inspect the various random accessories and parts in the package to avoid omissions. In order to save space and ensure safety of components, some components will be placed outside the inner packaging box, so be careful of their inspection.
For special packaging, it is generally after opening the box, all packaging boxes, protective foam, plastic bags should be kept for a period of time. If there is a problem during the return period, you can return or exchange the original. After the return period (usually 10-30 days, according to the manufacturer’s Instruction of Terms of Service), these packaging boxes may be disposed of if there is no problem.

 


Optical Data

 

Video Microscope Optical Data Sheet
P/NObjective Coupler
MZ37021111  (1X)
Magnification
MT025132315X5X
MT0251333110X10X
MT0251343120X20X
1. Magnification=Objective Optical Magnification * Body Magnification * Coupler Magnification



Camera Image Sensor Specifications
No.Camera Image Sensor SizeCamera image Sensor Diagonal
(mm)(inch)
11/4 in. 4mm0.157"
21/3 in. 6mm0.236"
31/2.8 in. 6.592mm0.260"
41/2.86 in. 6.592mm0.260"
51/2.7 in. 6.718mm0.264"
61/2.5 in. 7.182mm0.283"
71/2.3 in. 7.7mm0.303"
81/2 in. 8mm0.315"
91/1.9 in. 8.933mm0.352"
101/1.8 in. 8.933mm0.352"



Contains  
Parts Including
MT025132315X Infinity Plan Long Working Distance Achromatic Metallurgical Objective
MT0251333110X Infinity Plan Long Working Distance Achromatic Metallurgical Objective
MT0251343120X Infinity Plan Long Working Distance Achromatic Metallurgical Objective
DC291111225M USB 3.0 CMOS Color Digital Camera
ST0204110276mm Fine Focus Track Stand
SA0208120345/76mm Donut
MZ370211111X Fixed Power Video Microscope Body with Nosepiece and Coaxial Illuminater

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