Magnification Compound Microscope The magnification 'm' of the compound microscope.

Therefore, the total magnification is the product of the magnifications of the objective and the eyepiece.

The stereoscopic Microscope The stereoscopic microscope is essentially a binocular instrument of low power used for observations where the third dimension, depth, is of importance.

Construction It consists of two similar compound microscopes of low power with their axes inclined at an angle of about 15 degree. The spacing is such that the axes intersect on the focal point. Two prisms are provided to give erect images to avoid a pseudoscopic effect. These prisms can be rotated about the entering axes for adjusting the eyepiece separation. In research type of stereoscopic microscopes, inclined eyepiece tubes are provided and the nosepiece carries three pairs of parfocal objectives which are shroudedfor protection. The stand can rapidly be split into sections so as to adapt the instrument for special purposes.

Uses Stereoscopic microscopes are used for the following purposes:

( i ) They are generally used as surgical microscopes to aid the surgeon in certain delicate operations.

( ii ) They are also used in the adjustment and assembly of small mechanisms and in the checking of small components.