What part of the microscope does the fine adjustment knob move?
http://utahscience.oremjr.alpine.k12.ut.us/sciber00/7th/cells/sciber/micrpart.htm
Thanks
The fine adjustment knob on a microscope is used to move the stage or the body tube (depending on the type of microscope) very slightly in order to bring the specimen into sharp focus. To understand which part of the microscope is affected by the fine adjustment knob, it's helpful to know the basic components of a microscope.
Most microscopes have two knobs for focusing: the coarse adjustment knob and the fine adjustment knob. The coarse adjustment knob is used to make large adjustments to bring the specimen into roughly the right focus. Once the specimen is approximately in focus, the fine adjustment knob is used to make smaller, more precise adjustments to achieve sharp focus.
In a compound light microscope, the fine adjustment knob typically moves the body tube. The body tube holds the objective lenses, which are the lenses closest to the specimen. By moving the body tube up or down with the fine adjustment knob, the distance between the specimen and the objective lenses can be minutely adjusted, allowing for fine-tuning of focus.
On the other hand, in a dissecting microscope or stereo microscope, the fine adjustment knob usually moves the stage. The stage is the platform on which the specimen is placed. By moving the stage up or down using the fine adjustment knob, the distance between the specimen and the objective lenses can be slightly changed, resulting in fine focus.
It's important to note that different microscopes may have variations in their design and functions. Therefore, it is always recommended to consult the user manual or guide specific to the microscope in question to confirm how the fine adjustment knob operates.