Zoom stereo microscope MZSM-4A is a dissecting microscope featuring a low magnification range. This bench-top unit on a post stand provide very clear upright, un-reversed 3-D image throughout the zoom range. Coarse focus knob with tension adjustment aids in mobility of the objective lenses. Magnification range and working distance can be expanded using optional eyepieces and auxiliary objectives. LED light providing uniform illumination with long life span.