GENERAL HISTOLOGY

Detailed explanation-1: -Fine Adjustment Knob-This knob is inside the coarse adjustment knob and is used to bring the specimen into sharp focus under low power and is used for all focusing when using high power lenses.

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: -On LOW POWER ONLY, use the coarse focus knob to get the object into focus. If you cannot see anything, move the slide slightly while viewing and focusing.

Detailed explanation-4: -OCULAR LENS or EYEPIECE-On a binocular scope there are two ocular lenses, one for each eye. These lenses magnify the image at 10X power. The power of the ocular lens multiplied by the objective lens gives the total magnification of the microscope.

Detailed explanation-5: -Fine adjustment or fine focusing knob: the smaller knob towards the back of the instrument that is used to make small adjustments in the height of the stage for final focusing on a specimen. It is the only focusing knob used with high power objectives.