This allows the reticule to be photographed with the specimen. Any module located between the limb and the binocular tube is called an intermediate piece. These include fluorescence, reflected light, multi-veiw and magnification changers modules. When you are calculating the total magnification of the microscope you must include any intermediate pieces. The stage sits below the nosepiece and supports the specimen.
Most modern stages are mechanical with low, coaxial controls.
This means that there is a single control hanging down from the stage that moves the specimen. It is very important that the stage be flat and that it be at right angles to the objective. If it isn't the specimen will keep going out of focus as it is moved. This is more important as the resolution of the objective increases. If you constantly have to refocus as you scan a specimen call your service person, it may be fixable.