50mm Diameter Zoom Stere Microscopes Adjustable Focusing Bracket Focusing Holder For Tinocular Microscope Binocular Microscope.
SPECIFICATIONS:
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Brand new focus rack with ball bearing
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Focus gear with coarse focus and tension adjustment
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Diameter of annular ring holding microscope head: (50mm)
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Diameter of opening for stand post (arbor): 1-1/4" (25mm)
