AmScope, B340B-DK-LED, 40X-2000X 3W LED Siedentopf Binocular Darkfield Compound Microscope
B340B-DK-LED Includes Only:
- One binocular microscope head
- One microscope body
- Four objective lenses: 4X, 10X, 40X and 100X
- One pair 10X eyepieces
- One pair 20X eyepieces
- One dry darkfield condenser
- One dust cover
- One sample immersion oil
- Two color filters: blue, green
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 accessible 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. Additional 20X eyepieces expand the maximum magnification to 2000X with 8 unique levels. 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.
