239LAB1HANDOUTP2.pdf - The Microscope 23 Summary Chart for...

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The Microscope23Summary Chart for Microscope # _Detail observedLetter eField size (diameter)mmµmmmp.mmmµmmmµmFine adjustment knob:Used for precise focusing oncecoarse focusing has been completed.Heador bodytube:Supports the objective lens system(which is mounted. on a movable nosepiece). and the ocularlens or lenses.Arm: Vertical portion of the microscope connecting the baseand head.Ocular (oreyepiece):Depending on the microscope, thereare one or two lenses at the superior end of the head or bodytube. Observations are made through the ocular(s). An ocularlens has a magnification of 10X. (It increases the apparentsize of the object by ten times or ten diameters). If your mi-croscope has a pointer (used to indicate a specific area of theviewed specimen), it is attached to one ocular and can be po-sitioned by rotating the ocular lens.Nosepiece: Generally carries three or four objective lensesand permits sequential positioning of these lenses over the

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