MICROANATOMY

Detailed explanation-1: -Focus (coarse), The coarse focus knob is used to bring the specimen into approximate or near focus. Focus (fine), Use the fine focus knob to sharpen the focus quality of the image after it has been brought into focus with the coarse focus knob.

Detailed explanation-2: -Fine adjustment knobs are used for sharpening the image of the specimen after it is focused. Coarse and fine adjustments, achieved through knobs, help in focussing the image. The fine adjustment knob is the smaller of the two knobs and is located inside the coarse adjustment knob.

Detailed explanation-3: -Fine Focus: This is the knob used to fine tune the focus on the specimen. It is also used to focus on various parts of the specimen. Generally it is best to use the coarse focus first to get close then move to the fine focus knob for fine tuning.