AmScope SM-4B Series Binocular Zoom Stereo Microscope 3.5X-45X on Double Arm Boom Stand with 70-LED Ring Light

AmScope's SM-4B is a heavy-duty, highly flexible microscope designed for biological and industrial applications. This model is especially popular in the QC, repair, and engraving industries thanks to its ease of use and reliability. With its wide zoom range and double-arm boom-stand, this model will become an indispensable instrument in any workshop or lab. Optics The stereo optics provide clear, sharp images with excellent focus-depth and a large working distance. With 0.7X-4.5X zoom objectives, moving through the magnification range is as easy as turning a knob. 10X wide-field eyepieces provide an ample magnification range from 7X to 45X, with high-eyepoint optics to accommodate glasses or goggles. A 0.5X Barlow lens is included, which can be mounted to the objective housing to halve the magnification range to 3.5X-22.5X. This also increases the working distance. The combined magnification ranges provide 3.5X-45X. Ocular Adjustment Dual ocular diopters can be adjusted to maintain con