The MAGUS Bio 230B biological microscope is a professional instrument for observing biological specimens in transmitted light. The main microscopy technique used is brightfield (immediately accessible). Darkfield, phase-contrast, and polarized-light observation techniques can also be used, but require additional accessories to be fitted to the microscope. This microscope is perfect for laboratory observations and research in the medical, pharmaceutical, forensic, agricultural, and various other fields.

Microscope in use »

Optics

The plan achromatic objectives provide clear images rich in contrast and detail, with minimal aberrations. Using the objectives and eyepieces included in the package, magnification ranges from 40x to 1000x, but the upper limit can be increased by using additional eyepieces. The optics are corrected for infinity, which means that various other accessories can be inserted into the optical path.

The trinocular head is equipped with a separate vertical tube for mounting a digital camera (not included). This optical tube is positioned vertically. The trinocular head is equipped with swiveling optical tubes at 360°, and the diopters can be adjusted using a ring on the left eyepiece tube. The design of the trinocular head makes it easy to adjust the interpupillary distance to suit the observer's height.

The revolving nosepiece, with its objectives, faces inward and can accommodate 5 objectives at once: 4 are included in the package and the fifth slot is left empty. An additional objective can provide an additional magnification factor within the available magnification range.

Illumination

The 30 W halogen lamp provides bright illumination and allows good visibility of specimen structures with any observation technique and any objective. Its warm color temperature is more comfortable on the eyes during long hours of work. A brightness control is provided. The light is powered by the AC mains.

Köhler illumination can be set up thanks to the centerable, height-adjustable Abbe condenser, the aperture diaphragm, and the field diaphragm. The condenser has a slot for inserting a darkfield slider or a phase-contrast slider. Using a slider allows you to switch quickly between observation techniques, thereby improving the microscope's performance.

Stage and focusing mechanism

The stage has no positioning rack, making it more ergonomic. The mechanical insert moves the specimen smoothly and can be removed for manual scanning.

The focusing knobs are located on both sides of the microscope, near the base of the stand. Their position allows you to adjust image sharpness while keeping your hands resting on the table rather than raised in the air, ensuring greater comfort during prolonged observations. The knobs are coaxial (centered on the same axis). The coarse focusing mechanism has a locking knob, and the tension of the coarse adjustment screw can be adjusted. Overall, the focusing mechanism operates smoothly, without requiring excessive force on the knobs to achieve the desired sharpness.

Accessories

The optional accessories range includes eyepieces, objectives, polarization instruments, darkfield condensers, phase-contrast devices, calibration slides, and digital cameras. Designed specifically for the MAGUS Bio 250T, these accessories fit the microscope perfectly and maximize its capabilities.

Key features:

• Trinocular head with vertical tube for mounting a digital camera
• The swiveling optical tubes at 360° allow the eyepiece position to be adjusted to suit the user's height
• Diopter adjustment on the left eyepiece tube, coarse focusing (coarse adjustment screw) with locking knob and tension adjustment knob for the coarse adjustment screw, fine focusing with fine adjustment screw
• Transmitted-light observations, light source: 30 W halogen lamp with adjustable brightness
• The Abbe condenser, with aperture and field diaphragms, makes it possible to set up Köhler illumination
• Can accommodate a phase-contrast slider or a darkfield slider (a dedicated slot is provided)
• A wide range of optional accessories

The package contains:

• Base with power input, light source for transmitted-light observations, focusing mechanism, stage, condenser mount, and revolving nosepiece
• Abbe condenser
• Trinocular head
• Infinity plan achromatic objective: 4x/0.10
• Infinity plan achromatic objective: 10x/0.25
• Infinity plan achromatic objective: 40x/0.65 (spring-loaded)
• Infinity plan achromatic objective: 100x/1.25 oil (spring-loaded)
• 10x/22 mm eyepiece with long eye relief (2 pcs.)
• Eyecup (2 pcs.)
• Filter (4 pcs.)
• C-mount adapter
• Bottle of immersion oil
• AC mains power cable
• Dust cover
• User manual and warranty certificate

Available on request:

• 10x/22 mm eyepiece with reticle
• 12,5x/14 mm eyepiece (2 pcs.)
• 15x/15 mm eyepiece (2 pcs.)
• 20x/12 mm eyepiece (2 pcs.)
• 25x/9 mm eyepiece (2 pcs.)
• Infinity plan achromatic objective: 20x/0.40
• Infinity plan achromatic objective: 60x/0.80 (spring-loaded)
• Phase-contrast device
• Phase-contrast slider
• Darkfield condenser with N.A. 0.9
• Oil darkfield condenser with N.A. 1.36–1.25
• Darkfield slider
• Polarization instruments
• Digital camera
• Calibration slide
• LCD monitor