MAGUS Bio 260T is a microscope for everyday use in the laboratory, for scientific research or training. It works with thin, transparent and translucent specimens using the bright-field method. Additional components can be installed on the device to expand its functionality and use the dark-field, phase-contrast, polarized-light and fluorescence methods.
The model is equipped with a coded nosepiece that can hold up to five objectives. The “smart” illumination turns on automatically when the nosepiece is rotated and is adapted to the settings of each objective. Thanks to this feature, no time is wasted adjusting the light, which is very important during training or when you need to change magnification frequently.

Microscope in use »

The microscope has a trinocular head that uses an infinity-corrected optical system. The interpupillary distance is adjustable. The position is adjusted by rotating the tubes up to 360°. A digital camera is installed in a trinocular tube. The vertical tube provides a magnification of 0,55x in this microscope model and comes with a 1x C-mount adapter. The camera's final output magnification is 0,55x. When selecting a camera and calculating the resolution and sensor size, use the final magnification factor of 0,55x. Light is distributed to the camera and eyepieces at a ratio of 50/50 (fixed ratio). The microscope kit includes basic 10x eyepieces with a field of view of 22 mm and a diopter adjustment mechanism. No adjustment is made to the tubes. Users who wear glasses can use the included rubber eyecups to protect the lenses from abrasion and scratches.

The nosepiece for 5 objectives is equipped with an automatic illumination control system. When changing magnification, the user may notice significant fluctuations in the light level in the eyepiece: objectives with different magnifications transmit light in different ways. Smart illumination allows the light level to be set once for specific objectives; then, when the nosepiece is rotated, the light is adjusted automatically. The microscope kit includes 4 objectives; the user can place an objective in the fifth slot as needed. The parfocal distance is 60 mm. The slot above the nosepiece is used to install the analyzer; when the analyzer is not installed, the slot is closed with a plug.

The specimen stage has a belt-driven mechanism: the specimen moves slowly and continuously. There is no positioning along the X-axis, making microscope use more ergonomic and comfortable. The specimen holder is secured with two screws, which can be removed when necessary. Another practical detail is the stage's long control handle. The microscope can be used with your hands resting on the table, without straining your arms or body.

The condenser can be adjusted to the desired position, both vertically and along the optical axis (using a dovetail mount). The iris diaphragm is adjusted with a ring: it has a mark, and the objective magnification indicators are visible on the condenser body. For contrast imaging, the mark is set to match the installed objective. The condenser can be fitted with a dark-field or phase-contrast slider; a special slot is provided for this.

The microscope is focused using coaxial coarse and fine adjustment knobs. Coarse focusing is performed with the knob on the left side. Fine-focusing knobs are located on both sides; the one on the right has special grooves for the fingers. An additional convenience is the travel adjustment ring, which allows the tension of the coarse-focus travel to be adjusted easily. The knobs and ring are located at the bottom of the stand and can be operated with your hands resting comfortably on the table.

The microscope illumination is provided by a 3 W LED mounted in a transmitted-light illuminator. The illumination temperature remains stable even when brightness changes. Optional research methods for this microscope include Köhler illumination. This type of illumination makes it possible to illuminate the entire specimen uniformly, while elements such as dust or the image of the light source are not visible through the eyepiece or digital camera.

Operating parameters can be viewed and adjusted using the integrated display on the base of the microscope. The display indicates the magnification of the objective in use, illumination settings, operating mode and automatic shutdown time.

Additional components are available to expand the device's functionality. A set of eyepieces can increase the magnification range. To use other methods with specimens that cannot be observed using the bright-field method, the microscope must be equipped with a phase-contrast device, a dark-field slider or a polarization device. A digital camera can help capture study results in photos or videos, or display images on a screen. Objects can be measured using a calibration slide and an eyepiece with a graduated scale or a digital camera.

Key features:

• The microscope is designed for training activities and scientific research
• Works with transparent and translucent specimens; the transmitted-light illuminator uses a 3-watt LED
• Illumination can be adjusted using the Köhler method
• The coded nosepiece adjusts the brightness for each objective
• Five objectives can be installed simultaneously
• The trinocular head allows a digital camera to be installed; beam splitting 50/50
• The interpupillary distance is adjusted by rotating the tubes
• Equipped with an integrated display showing operating parameters
• Additional accessories allow studies using reflected-light, dark-field, phase-contrast, fluorescence and polarization methods

The package includes:

• Stand with integrated power supply, transmitted-light source, focusing mechanism, stage, condenser mount and nosepiece
• Abbe condenser
• Trinocular head
• Plan achromatic Plan 4x/0.10 ∞/– objective, parfocal distance: 60 mm
• Plan achromatic Plan 10x/0.25 ∞/– objective, parfocal distance: 60 mm
• Plan achromatic Plan 40x/0.65 ∞/0.17 objective, parfocal distance: 60 mm
• Plan achromatic Plan 100x/1.25 oil ∞/0.17 (spring-loaded) objective, parfocal distance: 60 mm
• 10x/22 mm eyepiece with long eye relief and diopter adjustment (2 pcs.)
• Eyecup (2 pcs.)
• C-mount adapter
• Bottle of immersion oil
• AC power cord
• Dust cover
• User manual and warranty certificate

Available on request:

• 10x/22 mm eyepiece with a graduated scale
• 10x/22 mm eyepiece with a reticle
• 10x/22 mm eyepiece with a pointer
• Eyepiece 12,5x/16 mm (2 pcs.) Eyepiece 15x/16 mm (2 pcs.)
• Eyepiece 20x/12 mm (2 pcs.)
• Plan achromatic objective Plan 2x/0.06 ∞/–, parfocal distance: 60 mm
• Plan achromatic objective Plan 20x/0.40 ∞/0.17, parfocal distance: 60 mm
• Plan achromatic objective Plan 60x/0.80 ∞/0.17, parfocal distance: 60 mm
• Plan apochromatic objective Plan Apo 60x/1.42 oil immersion ∞/0.17, parfocal distance: 60 mm
• Plan achromatic objective Plan 100x/1.10 ∞/0.17 water immersion, parfocal distance: 60 mm
• Semi-apochromatic plan fluorescence objective set: 4x, 10x, 20x, 40x, 100x (oil immersion); ∞/0.17; parfocal distance 60 mm
• Phase contrast device: phase contrast slider set, centering telescope, phase contrast objective set
• Phase contrast device: phase contrast condenser, phase contrast objective set, centering telescope
• Dark-field slider
• Dry dark-field condenser N.A. 0.7–0.9
• Oil dark-field condenser N.A. 1.3–1.26
• Epi-fluorescence attachment with LED light source, fluorescent filter cubes and power cable
• Polarizer instrument
• Digital camera
• Calibration slide
• Color filter set (blue, green, yellow, frosted glass)
• C-mount adapter
• Monitor