The Levenhuk 850B microscope is a reliable biological binocular microscope that can be used both for observing both light and dark fields. It is widely used in various types of medical laboratories to conduct research in the field of dermatology, cytology, hematology and others. Standard equipped with high-quality planachromatic lenses.
The microscope head is inclined at 30 degrees and can rotate 360 ••degrees. Thanks to four planachromatic lenses mounted in the head turret, lighting in the Koehler system, adjustment of the aperture diaphragm and field, this microscope is ideal for professional observation.
The table (140 x 155 mm) can be moved in two axes. Focus is achieved by turning the fine and coarse adjustment knobs to raise or lower the table, increasing or decreasing the distance between the sample and the objective lens. Both control systems operate smoothly, with a range of 25 mm for roughing and 0.002 mm for fine adjustment.
The lighting source is a 6 V / 20 W halogen lamp installed on the basis of a microscope. The brightness can be adjusted.
Opportunity in the dark field
The Levenhuk 850B binocular microscope is equipped with a dark field condenser that can be used when the Abbe condenser is raised as high as possible. The dark field microscope is best suited for blood tests and other biological samples, often offering a higher contrast than in the case of bright field observations. By rotating the lighting ring to the right, you enter the dark box mode.
• magnification: 40x - 2000x (40x, 80, 100x, 200x, 400x, 800x, 1000x, 2000x)
• glasses: WF PLAN 10x / 23 mm - 2 pieces, WF 20x / 23 mm - 2 pieces
• lenses: PLAN 4x / 10x / 40x / 100x (oil) - planachromatic
• head: binocular
• distance between the glasses: 55 - 75 mm
• lighting: 6 V / 20 W halogen lamp, lower
• power supply: 230 V
• weight: 6.1 kg
• integrated Abbe condenser system, 1.25 NA, high-class iris diaphragm and dark field condenser
• stage 140x155 mm with XY movable cross table in the range of 70 mm - 50 mm
• sharpness adjustable with a table, macro and micro screw (1:10, 25 mm)
• integrated lighting supply
• Koehler lower lighting illuminator
• smooth regulation of lighting intensity
• 6 V / 20 W halogen lamp
lifetime manufacturer's warranty, 2-year shop warranty