GENERAL HISTOLOGY

Detailed explanation-1: -COARSE ADJUSTMENT KNOB-A rapid control which allows for quick focusing by moving the objective lens or stage up and down. It is used for initial focusing. 5. FINE ADJUSTMENT KNOB-A slow but precise control used to fine focus the image when viewing at the higher magnifications.

Detailed explanation-2: -On LOW POWER ONLY, use the coarse focus knob to get the object into focus.

Detailed explanation-3: -The larger, inner coarse adjustment knob moves the stage up and down much faster and farther than the smaller, outer fine adjustment knob. The coarse adjustment knob is used ONLY with the low power (4X, 10X) objectives.

Detailed explanation-4: -Parts of the Microscope Coarse adjustment knob-Focuses the image under low power (usually the bigger knob) Fine adjustment knob-Sharpens the image under all powers (usually the smaller knob) Arm-supports the body tube and is used to carry the microscope.

Detailed explanation-5: -Use the Coarse Focus Knob to bring the image into focus. 7. Use the Fine Focus Knob to bring the image into focus. When using 10x and 40x objectives, use ONLY the fine focus knob so that you don’t scratch a lens or break a slide.