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Learn how to use microscopes effectively at Summerland Secondary School Science class. Understand different lens magnifications and proper slide preparation for optimal viewing.
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Summerland Secondary School Science 10 Microscopes
The Ocular Lens OcularMagnification = ___ X
The Ocular Lens OcularMagnification = 10 X
The Low Power Objective Lens Magnification = 4 x
Ocular magnification x Objective magnification = Total Magnification Eg. For the low power objective: 4 Ocular magnification x Objective magnification Total Magnification= 10 x 4 =
Ocular magnification x Objective magnification = Total Magnification Eg. For the low power objective: 4 Ocular magnification x Objective magnification Total Magnification= 10 x 4 = 40x
Objective Magnification = 10 x The Medium Power Objective Lens
Total Magnification = Ocular magnification x Objective magnification 10 x 10 = 100 x
The High Power Objective Lens Magnification = 40 x
The High Power Objective Lens Magnification = 40 x Total Magnification = 10 x 40 = 400 x
Course Focus Adjustment Knob Fine Focus Adjustment Knob
The StageClips The StageClips The Stage
The StageClips The StageClips The Stage The Center of the Stage
TheStage The Light Control Disk -the larger the hole below the object, the more light gets through to the object.
The AC Adaptor Plug into outlet
The Ocular Lens Magnification = 10 x
Low Power Objective Lens Magnification = 4 x
Medium Power Objective Lens Magnification= 10 x
High Power Objective Lens Magnification = 40 x
Stage Light ControlDiaphragm Light
Course Focus Adjustment Knob Fine Focus Adjustment Knob
StageClips Stage
4 When you put the microscope away, the LOW power objective lens should be right on top of the center of the stage !!!!!!
4 When you put the microscope away, the LOW power objective lens should be right on top of the center of the stage !!!!!!
Steps in Viewing a Prepared Slide • Click LOW power objective on top of the center of the stage.
Steps in Viewing a Prepared Slide • Click LOW power objective on top of the center of the stage. • Clip Slide under clips
Steps in Viewing a Prepared Slide • Click LOW power objective on top of the center of the stage. • Clip Slide under clips • 3. Align so object being viewed is right in the very center.
Steps in Viewing a Prepared Slide • Click LOW power objective on top of the center of the stage. • Clip Slide under clips • 3. Align so object being viewed is right in the very center. • 4. Adjust focus with course and then fine adjustment. Make sure the object is in the very center before you switch to a higher magnification.
Steps in Viewing a Prepared Slide 6. Click Medium (10 x ) objective lens Into place above the slide.
Steps in Viewing a Prepared Slide 6. Click Medium (10 x ) objective lens Into place above the slide.7. Focus with fine adjustment knob. (You may have to move the slide a bit to keep the object in the center)
Steps in Viewing a Prepared Slide 6. Click Medium (10 x ) objective lens Into place above the slide.7. Focus with fine adjustment knob. (You may have to move the slide a bit to keep the object in the center)8. If you require, switch to HIGH power objective. Do NOT use the course adjustment knob!!! MAKE SURE THE LENS DOES NOT TOUCH THE SLIDE !!!!