The rotating stage also has two centering screws with milled knobs. This stage also has rotational motion, with a locking screw knob. This allows the X and Y verniers to then be used as a 'finder' to locate a The right side slide holder also slides in the same groove. Which secures the position of the left side of the slide. The stage has vernier scale graduations in both X and Y axes.Ī third scale and vernier was added for recording the position of the movable 'check-piece' or slide holder, With options of three different stages, this example being equipped with '1interv.' 0.002mm' (but the m's are on top of each other). The exact signature on the fine focus plate is: Other rather than next to each other as normally would be the case. Because of space limited on the plate by its retaining screw, the letters mm are on top of each The left fine focusing knob is graduated as the plate states, The coarse adjustment knob has a smaller secondary knob on the left sideįor rapidly changing the coarse adjustment this knob can be changed to fit on either side of the microscope.įine focus is via the Berger side-fine-adjustment. 'Y'-shaped, but the 'horseshoe' designation has persisted.Ĭoarse focus is by diagonal rack and pinion. This form of horseshoe, with rear extension, might be more properly termed
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