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Intro to the Microscope. Parts of a Microscope. Parts of a Microscope. Objective Lens : Lens that receives the first rays of light from the light source. 3 magnifications:. Fine vs. Course Focus . Course focus- for focusing on low power objective. ONLY USE ON LOW POWER!!!
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Parts of a Microscope • Objective Lens: Lens that receives the first rays of light from the light source. • 3 magnifications:
Fine vs. Course Focus • Course focus- for focusing on low power objective. • ONLY USE ON LOW POWER!!! • Fine focus- for use on high power objective
Using the Microscope • Place slide so center of slide is directly over the light source. • Always start on lower power • Use course adj. knob to get specimen in focus. • Switch to high power objective. • Use fine adj. knob to get specimen in focus.
Preparing a Wet Mount Slide • Get this slice of specimen and place on center of slide. • Put one drop of water over specimen. • Place coverslip at 45 degree angle and drop on slide.