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it is the COURSE adjustment knob
This is the coarse adjustment knob. This should be used before the fine adjustment knob (the smaller knob) - which is for fine focusing.
Do not allow the high power objective to tough the lenses
It is the first knob you should turn to bring the object into rough focus, before tinkering with the finer tuning knobs.
use the fine adjustment knob to get a better view of what you are looking at.For low power you can use the coarse adjustment and fine adjustmentfor high power you should only use the fine adjustment because on high power, the objective lens is too close to the slide and using the coarse adjustment may scratch the objective lens.
It sets or adjusts the coarse of a speciment in a microscope.
It sets or adjusts the coarse of a speciment in a microscope.
It sets or adjusts the coarse of a speciment in a microscope.
when should the coarse wheel adjustment be used
it is the COURSE adjustment knob
high-power lens
the coarse adjustment knob
Coarse Adjustment
This is the coarse adjustment knob. This should be used before the fine adjustment knob (the smaller knob) - which is for fine focusing.
There are two adjustment knobs (coarse and fine) on a microscope so you can move the stage at two different speeds. The coarse moves a lot per revolution, while the fine adjustment knob moves the stage at such small increments that it is nearly impossible to notice when looking from the side. The coarse adjustment knob should be used to get the stage closer to the lens only while you are looking at the microscope from the side. The fine adjustment knob can be used when you are looking into the microscope because there is a much lower chance of running the stage into the lens and breaking it.
Fine Adjustment knob
I believe it's the coarse adjustment.