Optical microscope MAGUS Bio 250B
MAGUS Bio 250B is a biological microscope for working with translucent and transparent samples. Equipped with a binocular head, plan achromatic optics and a 30-watt halogen transmitted light illuminator. It is used for making observations in a bright field, and when equipped with additional accessories - in a dark field, in polarized light and using the phase-contrast method. The microscope is suitable for solving a wide range of problems in a laboratory, research center, or university department. Optical design The optical design uses a binocular attachment, in one of the eyepiece tubes of which you can install a digital camera. Diopters are adjusted on the left tube. A special feature of the attachment is that its eyepiece tubes rotate 360°, which allows you to set the gaze height in accordance with the user’s height. The 5-socket revolving device accommodates not only the supplied lenses, but also one additional one. Due to the fact that the revolver is in the “away from the observer” position, the lens being used is clearly visible, and the space above the table is free. All lenses included in the kit are planaromat, which allows you to obtain a clear and contrast image with a minimum of distortion. Optics magnification range: from 40 to 1000 times, the upper limit can be increased by equipping the microscope with additional eyepieces. Lighting system The illuminator power is 30 W, so the sample is clearly visible with any research method and on any lens. The halogen lamp emits a warm light that is pleasant to the eye and does not cause fatigue when working with a microscope for a long time. There is a brightness setting. Power source – AC mains. The transmitted light illumination system includes an Abbe condenser with an aperture diaphragm, as well as a field diaphragm. Their presence allows you to use the Köhler method when setting up lighting. A dark-field or phase slider can be installed in a separate condenser slot to quickly switch from one observation method to another. Mechanics A special feature of this microscope is the absence of a retractable stage rail: working with the microscope becomes more convenient, and less space is required to place it. The drug guide moves the sample smoothly and accurately and can be removed if needed. Focusing can be done roughly by adjusting the speed, or finely. Both focusing knobs are accessible on both sides of the body and are located coaxially. Rough focusing has a travel lock. Accessories A line of fully compatible accessories has been developed for the MAGUS Bio 250B microscope: lenses and eyepieces of different magnifications, devices for working with different research methods (dark field, phase contrast, polarized light), calibration slides and digital cameras.
- Microscope type: light/optical, biological
- Attachment type: binocular
- Nozzle: Gemel (Siedentopf with 360° rotation of tubes)
- Eyepiece tilt angle: 30°
- Magnification, x: 40–1000 basic equipment (*optional: 40–1200/1250/1500/1600/2000/2500)
- Diameter of the eyepiece tube, mm: 30
- Eyepieces: 10x/22, distance pupil 10 mm (*optional: 10x/22 mm with scale, 12.5x/14; 15x/15; 20x/12; 25x/9)
- Lenses: planachromatic, infinity corrected: 4x/0.1; 10x/0.25; 40xs/0.65; 100xs/1.25 (oil); parfocal height 45 mm (*optional: 20x/0.4; 60xs/0.80)
- Revolving device: for 5 lenses
- Working distance, mm: 21 (4x); 5 (10x); 0.66 (40xs); 0.36 (100xs); 8.8 (20x); 0.46 (60xs)
- Interpupillary distance, mm: 48–75
- Subject stage, mm: 180x150, two-axis mechanical, without retractable rail
- Range of movement of the object table, mm: 75/50
- Diopter adjustment of eyepieces, D: ±5 (on the left tube)
- Condenser: Centerable and height-adjustable NA 1.25 Abbe condenser with adjustable aperture diaphragm and slot for darkfield and phase contrast slider; dovetail fastening type
- Aperture: adjustable aperture, adjustable iris field
- Focusing: coaxial, coarse (21 mm, 39.8 mm/turn, with locking and rigidity adjustment mechanisms) and fine (0.002 mm)
- Backlight: halogen
- Brightness adjustment: yes
- Power source: AC mains, 220±22 V / 50 Hz
- Backlight type: 12 V/30 W, G4 base
- Light filters: yes
- Weight, kg: no more than 8, without packaging
- Dimensions, mm: no more than 200x436x400 (WxHxD), without packaging
- Operating temperature range, °C: +5… +35
- Possibility of connecting other equipment: phase contrast device (condenser and objectives), dark field condenser (dry or oil), simple polarization device (polarizer and analyzer)
- User level: for professionals, for experienced
- Assembly and setup difficulty level: difficult
- Purpose: laboratory/medical
- Illumination location: bottom
- Research method: bright field
- Cover/case/bag included: dustproof cover