AmScope B340-DK-LED B340 Series Darkfield Binocular Compound Microscope with 3W LED and Optional Digital Camera

AmScope B340 Series Darkfield Binocular Compound Microscope 40X-1000X Magnification with 3W LED

• A heavy-duty, ergonomic brightfield/darkfield microscope for students and professionals.
• Professional features include a Siedentopf binocular head for precise adjustments, a 2-layer mechanical stage with low-position controls, and coaxial coarse and fine focus for ergonomics and an efficient workflow.
• Includes a dry darkfield condenser for darkfield observation which will provide contrast in otherwise indistinguishable objects by highlighting changes in refractive index.
• 40X to 1000X achromatically-corrected magnification for studying a range of specimens including hair follicles, cells, and bacteria.

The B340-DK-LED binocular compound microscope is designed for educational and professional use. It includes two light condensers for brightfield and darkfield applications, making it appropriate for live and fixed specimens alike. The medium-sized profile offers streamlined ergonomics with plenty of working room. The heavy-duty metal build and enamel coating will last for many years through rigorous use.

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 head can also be rotated 360° to accommodate multiple users. Various eyepieces can be used to increase the overall optical magnification.

The objective turret provides instant access to 4 magnification levels to easily focus in on minute details from 40X to 1000X. This covers magnifications needed for studying hair follicles, cells, and bacteria. These high-quality lenses are achromatically corrected to improve resolution and color accuracy.

The 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. An adjustable height limit can be set to prevent damage to the lenses and specimens while focusing.

The LED sub-stage lighting provides cool, energy-efficient illumination. The light-source is daylight balanced to produce natural colors for imaging. The Abbe brightfield 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.

The darkfield condenser allows you to render detail in specimens that would otherwise be transparent. Using principles of light-diffraction to suppress field-illumination, the condenser illuminates edges of cells, microorganisms, and other objects. This is particularly useful for live blood analysis. The condenser is designed for use with non-immersion objective lenses with numerical apertures up to 0.9, with optimal contrast at NA0.7 or lower. An optional oil-immersion darkfield condenser is recommended for the 100X objective.

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