B660 Darkfield Binocular Compound Microscope 40X-2000X w/20W Halogen Kohler Illumination

B660 Series Darkfield Binocular Compound Microscope 40X-2000X Magnification with 20W Halogen Kohler Illumination. This an upgraded version of the B660, adding a darkfield light-condenser for professional biological applications including darkfield observation. It uses an ergonomic design for comfort and a fluid workflow, and its achromatic optics provide sharp, color-correct images. The halogen illumination system provides low-fatigue, evenly-distributed light for maximum contrast and definition. This model is a popular choice for veterinarians and university laboratories. Specialized darkfield optics allow you to observe live cells including blood and other fluids, making it a great choice for clinics and medical labs. To customize the microscope to your viewing comfort, the eyepiece spacing can be easily adjusted using a precision Siedentopf mechanism. A diopter is available on the left ocular tube to compensate for asymmetry, and the ocular tubes are angled at 30° to comfortably accommodate a seated position without neck strain. The objective turret provides instant access to 4 magnification levels to easily focus in on minute details from 40X to 1000X. Additional 20X eyepieces expand the maximum magnification to 2000X with 8 unique levels. This covers magnifications needed for studying hair follicles, cells, and bacteria. The turret's reversed orientation provides more working room above the stage. These high-quality lenses are achromatically corrected to improve resolution and color accuracy. The large 2-layer mechanical stage provides smooth and precise movement for examination of specimen slides. The stage's low-position controls are conveniently placed near the coaxial focus knobs for a streamlined workflow. Examining specimen slides is intuitive and precise for users at any skill level. Built on Koehler illumination principals, the sub-stage lighting provides evenly-distributed light for optimal contrast. The halogen light-source provides bright illumination with a lower color-temperature for decreased fatigue when used for long periods. The Abbe light condenser has a high 1.25 numerical aperture for oil-immersion, and an iris diaphragm to optimize contrast and depth-of-field. The condenser holder uses rack-and-pinion height adjustment for precision control, and is centerable for proper alignment. The illuminator's field lens provides an iris diaphragm to control light-spread, optimizing contrast and definition in specimen features. An oil da

• 40X to 2000X magnification range for studying a range of specimens including hair follicles, cells, and bacteria. 10X and 20X eyepieces provide 8 unique magnification settings.
• An upgraded model with a darkfield condenser for advanced lighting applications including live cell analysis
• The larger format body with its precision mechanics provides a stable platform designed for years of hard use.
• Achromatic color-corrected lenses produce high-resolution, high-contrast images.
• The Koehler illumination system provides centered, evenly-distributed lighting with a field aperture for maximum contrast and definition.