Or Turret. 1. Plug in and turn on light source. 2. Clean lenses with lens paper. 3. Put the slide on stage.  Hook under only ONE stage clip for ease.

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Presentation transcript:

or Turret

1. Plug in and turn on light source. 2. Clean lenses with lens paper. 3. Put the slide on stage.  Hook under only ONE stage clip for ease in movement and control!

4. On low power, FIND your specimen using the COARSE ADJUSTMENT KNOB. 5. Use Fine Adjustment Knob to refine the focus. 6. Switch to medium power and bring into focus using both knobs.  Make sure your specimen is in the center so as to NOT lose it when you switch to high power

7. Switch to high power and bring into focus using ONLY the FINE ADJUSTMENT KNOB.  Do NOT use the COARSE ADJUSTMENT KNOB because:  It can hit the lens on the slide and scratch the lens (very expensive) or break the slide (much less expensive).

Ocular (Eyepiece): 10X Objectives:  Low Power: 4X  Medium Power: 10X  High Power: 40X  Highest Power: 100X or Turret

Total Magnification = Ocular X Objective  Low Power:  10 X 4 = 40X total mag  Medium Power:  10 X 10 = 100X total mag  High Power:  10 X 40 = 400X total mag  Highest Power:  10 X 100 = 1000X total mag  DO NOT ADD!!!! or Turret

Field of View (FOV):  The lower the power, the more FOV you see. (More area is magnified less)  The higher the power, the less FOV you see. (Less area is magnified more) 10x15X20X30X40X

 The lower the power, the lighter the FOV (easier to see image).  The higher the power, the darker the FOV (harder to see image). › DIAPHRAGM (adjusts the amount of light): Disc underneath the stage that contains holes of different sizes. Dial to a larger hole to let in more light. Diaphragm or Turret

1. Take out a clear, clean slide. 2. Place 2 drops of water on the middle of the slide. 3. Carefully place specimen in the middle of water. 4. Gently lower cover slip onto water drops. 5. Repeat if the following happens… A.Water seeps out sides of cover slips  Wick away extra water seeping out by placing a piece of paper towel right next to cover slip. Hold there until all the water is gone from outside of cover slip. B.Air pockets under cover slip  Redo.