MAGUS Pol D890 MAGUS Polarizing Digital Microscope

Microscope for scientific research and industrial inspection.
Designed to study objects in the polarization and brightfield techniques. Installation of optional components will allow the use of the darkfield, phase contrast, and differential interference contrast techniques in transmitted light as well as differential interference contrast and fluorescence in reflected light.
In the transmitted light, you can study geological specimens as well as anisotropic biological and polymeric specimens in thin sections.
In reflected light, you can study polished sections with one polished side. The thickness of the opaque polished sections is arbitrary, typically 5–10mm. The microscope allows for the examination of opaque objects up to 30mm thick.
The polarizing microscope uses the birefringence of an anisotropic specimen to deliver an image. Plane-polarized light, when passing through an anisotropic specimen, splits into two beams and changes the plane of polarization. The analyzer brings the vibrations of the beams into the same plane, thereby causing interference. The bright, high-contrast image changes color when the stage rotates.
The microscope is equipped with a 8.3MP camera with a USB 3.0 interface. The camera connects to a computer and displays the image on its screen. The software complements the system with analysis and documentation functions.
Plan semi-apochromatic and plan apochromatic objectives are strain-free. The intermediate tube holds the analyzer and Bertrand lens, and it has a slot for compensators.
The microscope is used in crystallography, petrography, mineralogy, forensics, medicine, and other fields of science.

Digital camera

The MAGUS CLM30 digital camera is designed for use in fluorescence and darkfield microscopy techniques. The camera is equipped with an 8.3MP sensor and produces realistic images at a resolution of 3840x2160px. The camera is recommended for use with 4x, 10x, 20x, and 40x objectives. The camera allows capturing more details with low magnification objectives.
Video is recorded at 45fps or 70fps depending on its resolution. Videos are smooth, with soft and subtle transitions between frames. The movement of the sample is displayed in real time with no delays. The camera provides convenient work with moving objects and is suitable for conducting demonstrations in a classroom.
The camera is equipped with a USB 3.0 interface. The data transfer rate is 10 times faster than that of USB 2.0 cameras. The high-speed camera is recommended for professional laboratories, research, or university training.

Microscope head

Trinocular, with infinity-corrected optics. The user selects the most comfortable angle of inclination of the microscope head in the range of 0° to 35°. The digital camera is mounted in the trinocular tube. The beam splits 0/100, 100/0, or 80/20.
The basic configuration includes 10x/22mm eyepieces with diopter adjustment and high eyepoint for working with glasses.

Revolving nosepiece

Five objective revolving nosepiece. The free slot is used to adjust the bulb position in the reflected light illuminator. The user can also install an additional objective in the free slot of the revolver, which will allow them to obtain additional magnification.
The design of the revolving nosepiece (“toward the interior”) frees up space at the front of the stage, and so the user can see the objective inserted into the optical path. The slots of the revolving nosepiece are centered to align the optical axes of the objective and microscope.

Objectives

Infinity plan semi-apochromatic and plan apochromatic objectives are specifically designed for polarized light observations: The strain-free optics ensure that the birefringence comes from the sample and not from the optical elements. They provide better correction of chromatic and spherical aberration compared to plan achromatic objectives.
The 5x and 10x objectives are designed to work with or without a cover glass, 20x and 50x objectives are designed to work without a cover glass. The parfocal distance is 60mm.

Turret for installing contrast modules

The reflected light illuminator features a built-in turret for contrast modules. Three modules can be installed: one for transmitted light and two for reflected light. Rotating the turret changes the observation mode, allowing you to quickly switch from one contrast technique to another without needing to perform a complex adjustment.

Focusing mechanism

The microscope features low-position coaxial coarse and fine focusing knobs. The researcher can place their hands on the table and take a comfortable position in front of the microscope.
The coarse focus lock knob helps you quickly adjust the microscope after changing the object of study. The knob is located on the left side of the microscope on the same axis as the focusing mechanism.
The ring on the right side adjusts the tension of the coarse focusing travel. The user adjusts the comfortable tension for work.

Stage

The stage rotates 360° to view the color change of the sample when the polarizer and analyzer are in crossed orientation, and it can be locked in the desired position. The stage has a gradation of the rotation angle. Each 90° rotation from the current position is indicated by a click. With the vernier scale, measurements are made with an accuracy of 0.1°.
The stage design provides for centering with two screws, as polarized light observations of an anisotropic object requires precise alignment of the stage rotation axis with the optical axis of the microscope.

Light sources

100W halogen bulbs are used in both reflected and transmitted light illuminators. Halogen bulbs emit light at a color temperature comfortable for the eyes. The 100W lamp is bright enough to work with objectives ranging from 4x to 100x magnification in brightfield and polarized light.

Reflected light illumination

The illumination system employs Köhler illumination. The field and aperture diaphragms are pre-centered within the optical axis at the factory and require no additional centering. If necessary, the diaphragms can be adjusted with centering screws. The light source is centered along three axes.
The analyzer and polarizer are used for the polarization microscopy. The polarizer is stationary, while the analyzer rotates 360° and has a vernier scale for precise angle setting.
A set of filters can help you adjust the color reproduction.

Transmitted light illumination

An adjustable field diaphragm, a centered and height-adjustable condenser with strain-free optics, an adjustable aperture diaphragm, and a flip-down lens realize the Köhler illumination adjustment. The flip-down lens is removed from the optical path for objectives with low magnification and returned back for objectives with magnification greater than 10x. The polarizer is 0–360° rotatable, with marks at 0°, 90°, 180°, and 270° on the scale. The analyzer rotates 360°, the vernier scale on the analyzer ensures angle accuracy.

Köhler illumination in reflected and transmitted light

Setting up the Köhler illumination enhances the image quality of a specimen. With such illumination, you achieve maximum resolution on each objective. Even illumination of the field of view with no darkening at the edges. The object of study is in sharp focus and the image artifacts are removed.

Studying samples in polarized light

The polarizer and analyzer are inserted into the light path to observe objects in polarized light. Use the scales of the analyzer and polarizer to set the desired crossed or parallel position of the polarizing devices. Rotating the polarizer or analyzer changes the polarization angle. When the microscope stage is rotated, the refraction of light by the sample changes depending on the polarization angle.
The Bertrand lens is used for conoscopic studies.
Compensators are used to enhance the contrast of objects with weak birefringence.

Accessories

There is a line of accessories designed specifically for this microscope.
An optional plan apochromatic objective provides additional magnification.
Eyepieces extend the magnification range of the microscope. Additional eyepieces will help you achieve the useful magnification of the objective that is used most frequently.
Phase contrast attachments, epi-fluorescence attachments, darkfield condensers, and DIC attachments expand the available microscopy techniques.
A calibration slide is used to measure objects and can be combined with the eyepiece with a scale or with the camera software.

Alternative models

The MAGUS Pol D890 is an alternative for the following models: Carl Zeiss Axio Imager 2 Pol, Carl Zeiss Axioscope Vario Polarization, Nikon ECLIPSE Ci-Pol, Nikon ECLIPSE E200Pol, Nikon ECLIPSE LV100ND POL/DS, Nikon ECLIPSE LV100Pol, Olympus BX53P.

Microscope features:

• Studies of transparent and opaque anisotropic samples in polarized and natural light
• Powerful 100W halogen transmitted and reflected light illuminators that provide bright natural light
• Orthoscopic observations, Bertrand lens for conoscopic observations, compensators, Köhler illumination in transmitted and reflected light
• Ergonomic trinocular head with adjustable tilt angle and a vertical camera port; beam splitting ratio (eyepiece/camera): 100/0, 0/100, or 20/80
• Plan semi-apochromatic and plan apochromatic objectives without internal strains do not introduce false optical effects into the image
• Multifunctional turret with 3 slots for installing modules of different contrast methods
• Convenient alignment of the revolving nosepiece slots and stage
• Rotating round stage with a vernier scale for the precise measurement of the rotation angle. It can be locked in the selected position, and each 90° rotation is indicated by a click

Camera features:

• For fluorescence and darkfield microscopy with 4x, 10x, 20x, and 40x objectives
• 8.3MP resolution: When observing with low magnification objectives, the camera will allow you to see finer details
• 45fps and 70fps at 3840x2160px and 1920x1080px resolutions for observing moving samples, recording video, and moving the preparation without jerks and delays
• Peltier element reduces the sensor temperature during prolonged operation and eliminates thermal noise. Therefore, long shutter speeds can be used when taking photos
• SONY Exmor color CMOS backlit sensor provides a low noise level and high light sensitivity even in low-light conditions. You will get clearer, brighter, and more color-saturated images
• USB 3.0 interface for fast data transfer with no jerking or lagging
• Software with photo, video recording, editing, external display functions, linear and angular measurements

Package:

• MAGUS CLM30 digital camera (digital camera, USB cable, 12V, 3A power adapter, carrying case, USB flash drive with drivers and software, user manual, and warranty card)
• Stand with built-in power supply, focusing mechanism, and revolving nosepiece
• Stage
• Condenser mount
• Condenser with a flip-down lens and a transmitted light polarizer
• Reflected light illuminator with a turret and a halogen lamphouse
• Transmitted light illuminator with a halogen lamphouse
• Trinocular microscope head
• Intermediate attachment with a Bertrand lens
• Analyzer
• Reflected light polarizer
• Compensators: λ compensator, λ/4 compensator, quartz wedge
• Reflected light filter set
• Plan semi-apochromatic objective Plan S-Apo 5x/0.15 ∞/–, parfocal distance: 60mm
• Plan semi-apochromatic objective Plan S-Apo 10x/0.30 ∞/–, parfocal distance: 60mm
• Plan semi-apochromatic objective Plan S-Apo 20x/0.45 ∞/0, parfocal distance: 60mm
• Plan apochromatic objective Plan Apo 50х/0.80 ∞/0, parfocal distance: 60mm
• 10х/22mm eyepiece with high eyepoint and diopter adjustment (2 pcs.)
• 10х/22mm eyepiece with crosshairs, high eyepoint, and diopter adjustment
• Eyecup (2 pcs.)
• 1х C-mount adapter
• Power cord
• Dust cover
• User manual and warranty card

Available on request:

• Plan apochromatic objective Plan Apo 100x/0.9 ∞/0, parfocal distance: 60mm
• Set of plan semi-apochromatic fluorescence objectives Plan S-Apo 4x, 10x, 20x, 40x, 100x (oil) ∞/0.17, parfocal distance: 60mm
• 10х/22mm eyepiece with a scale
• 10x/22mm eyepiece with a reticle
• 12.5х/16mm eyepiece (2 pcs.)
• 15х/16mm eyepiece (2 pcs.)
• 20х/12mm eyepiece (2 pcs.)
• 30х/8mm eyepiece (2 pcs.)
• Phase contrast device: phase contrast condenser, set of phase objectives, centering telescope
• Darkfield condenser NA 0.7–0.9
• Darkfield immersion condenser NA 1.3–1.26
• Differential Interference Contrast (DIC) device
• Epi-fluorescence attachment featuring a mercury lamphouse, fluorescence filter cubes, and a mercury lamp power supply unit
• Epi-fluorescence attachment with LED light source, fluorescence filter cubes, and power cable
• Calibration slide