Course Adjustment and Fine Adjustment Knobs.
eyepiece diaphragm
It moves the objective lens down to just above the slide
coarse adjustment knob
coarse adjustment knob
Coarse adjustment
eyepiece diaphragm
it moves the body tube and pbjectives up and down
The coarse-adjustment knob moves the body tube up and down to allow focusing of the image.
The coarse-adjustment knob moves the body tube up and down to allow focusing of the image.
The coarse-adjustment knob moves the body tube up and down to allow focusing of the image.
up
It moves the objective lens down to just above the slide
coarse adjustment knob
The course adjustment moves the stage of the microscope further/closer away from the objective lens (it is used for general focusing), and the fine adjustment moves the objective lens very small distances for finer focusing.
Coarse adjustment
coarse adjustment knob
You mount the slide on the microscope stage. It will have X/Y horizontal movement to view different parts of the specimen. The light is usually under the stage and may have some adjustment, and even focusing. Vertical adjustment is usually accomplished by focusing the objective up and down.