The M620 monocular compound microscope is designed for classrooms and basic laboratory applications. It is an ideal microscope for teachers and students, including those in medical school or with a major in biology. It has a number of advancements in functionality compared to other microscopes in its class, such as enhanced LED lighting and a centerable condenser. Use the microscope for studying fixed or live cells, bacteria, plants and soil, or water samples. The monocular head keeps things simple. The use of a single eyepiece means that no adjustments are necessary for eye alignment or symmetrical focus. The head can rotate 360° for viewing from different positions. Interchangeable eyepieces allow you to change the overall magnification with optional lenses, or use a camera in place of the eyepiece to view microscopic images on a computer monitor or other display. The objective turret provides instant access to 4 magnification levels to easily focus in on minute details from 40X to 1000X. An additional 25X eyepiece expands the maximum magnification to 2500X with 6 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. The LED sub-stage lighting provides cool, energy-efficient illumination. The light-source is daylight balanced to produce natural colors for imaging. With our specially developed fly-eye lens, the light is evenly distributed at maximum brightness to improve contrast and resolution. Illumination is further enhanced by a centerable Abbe condenser, which can be realigned for any magnification to guarantee proper lighting. Specifications Optical System: Finite-conjugate Mechanical Tube Length: 160mm Head: Monocular, 45° incline, 360° rotatable Ocular Diameter: 23mm Eyepieces: 10X, 25X Objective Lenses: DIN standard Objective Parfocal Distance: 45mm Objective Mounting Thread: RMS 20.32mm Objective Turret: quadruple Focusing System: Coaxial coarse and fine focus Focus Range: 30mm Division of Fine Focus: 0.002mm Stage Design: Double-layer with caliper Stage Dimensions: 118mm x 127mm X-Y Translation Range: 70mm x 21mm Transmitted Illumination: Variable-intensity 1W LED, fly-eye lens Condenser: NA1.25 Abbe condenser with iris diaphragm Sub-stage Condenser-holder: rack and pinion, centerable Power: 100-240VAC 50/60Hz wide-band Packing List:One monocular microscope head One microscope body Four objective lenses: 4X, 10X, 40X, 100X One 10X eyepieceOne 25X eyepiece One blue color filter One dust cover One sample immersion oil